diff --git a/src/LHC-MB-SD.in b/src/LHC-MB-SD.in
--- a/src/LHC-MB-SD.in
+++ b/src/LHC-MB-SD.in
@@ -1,92 +1,93 @@
 #-*- ThePEG-repository -*-
 
 ################################################################################
 # This file demonstrates how to produce only single-diffractive events
 # for ATLAS at 13.6 TeV. Some of the default settings are based on the LHC-MB
 # .in file, which are tuned to ATLAS Min-Bias data @ 7 TeV. More recent
 # tunes and tunes for other centre-of-mass energies as well as more usage
 # instructions can be obtained from this Herwig wiki page:
 # http://projects.hepforge.org/herwig/trac/wiki/MB_UE_tunes
 # The model for soft interactions and diffractions is explained in
 # [S. Gieseke, P. Kirchgaesser, F. Loshaj, arXiv:1612.04701]
 ################################################################################
 
 read snippets/PPCollider.in
 
 ##################################################
 # Technical parameters for this run
 ##################################################
 cd /Herwig/Generators
 ##################################################
 # LHC physics parameters (override defaults here)
 ##################################################
 set EventGenerator:EventHandler:LuminosityFunction:Energy 13600.0
 
 # Intrinsic pT tune extrapolated to LHC energy (note, tuned at 7 TeV)
 set /Herwig/Shower/ShowerHandler:IntrinsicPtGaussian 2.2*GeV
 
 # Minimum Bias
 read snippets/MB.in
 
 # Diffraction model
 read snippets/Diffraction.in
 
 #################################################
 # Single Diffractive Events Only
 #################################################
 # Remove all matrix elements, and only include diffraction
 cd /Herwig/MatrixElements/
 clear QCDDiffraction:MatrixElements
 clear /Herwig/Generators/EventGenerator:EventHandler:SubProcessHandlers
 # Insert the diffractive subprocess
 insert /Herwig/Generators/EventGenerator:EventHandler:SubProcessHandlers[0] QCDDiffraction
 
 # For single diffraction, we insert matrix elements
 insert QCDDiffraction:MatrixElements[0] MEDiffractionLeft
 insert QCDDiffraction:MatrixElements[0] MEDiffractionRight
 # For double diffraction as well, uncomment the following line
 #insert QCDDiffraction:MatrixElements[0] MEDiffractionDouble
 
 # Uncomment the following two lines if you want to include
 # the option for Delta+ baryon decay for single-diffractive processes
 # See [arXiv:1612.04701] for more details.
 #insert QCDDiffraction:MatrixElements[0] MEDiffractionDeltaLeft
 #insert QCDDiffraction:MatrixElements[0] MEDiffractionDeltaRight
 # As above, Delta+ baryon decay option in double-diffractive events
 #insert QCDDiffraction:MatrixElements[0] MEDiffractionDeltaDouble
 
 # Need to let Herwig know not to use correctionweight() functionality
 set MEDiffractionLeft:SingleDiffractionOnly Yes
 set MEDiffractionRight:SingleDiffractionOnly Yes
 
 
 #set /Herwig/Hadronization/ClusterFissioner:ClMaxLight 3500
 #set /Herwig/Hadronization/ClusterFissioner:ClMaxDiquark 3500
 # Turn off colour reconnection
 set /Herwig/Hadronization/ColourReconnector:ColourReconnection No
 
 ##################################################
 # Analyses
 ##################################################
 
 ## Comment these lines out in order to use rivet analyses
 #cd /Herwig/Analysis
 #create ThePEG::RivetAnalysis RivetAnalysis RivetAnalysis.so
 
 # cd /Herwig/Generators
 # insert EventGenerator:AnalysisHandlers 0 /Herwig/Analysis/RivetAnalysis
 ## Some example analyses for minimum bias events
 # insert /Herwig/Analysis/RivetAnalysis:Analyses 0 ATLAS_2012_I1084540
 # insert /Herwig/Analysis/RivetAnalysis:Analyses 0 ATLAS_2010_S8918562
 
 #insert EventGenerator:AnalysisHandlers 0 /Herwig/Analysis/HepMCFile
 #set /Herwig/Analysis/HepMCFile:PrintEvent 10000000
 #set /Herwig/Analysis/HepMCFile:Format GenEvent
 #set /Herwig/Analysis/HepMCFile:Units GeV_mm
+## Note that if you do a parallel run leave the line below commented
 #set /Herwig/Analysis/HepMCFile:Filename dif.fifo
 
 ##################################################
 # Save run for later usage with 'Herwig run'
 ##################################################
 cd /Herwig/Generators
 saverun LHC-MB-SD EventGenerator
diff --git a/src/LHC-MB.in b/src/LHC-MB.in
--- a/src/LHC-MB.in
+++ b/src/LHC-MB.in
@@ -1,62 +1,63 @@
 # -*- ThePEG-repository -*-
 
 ################################################################################
 # This file contains our best tune to UE data from ATLAS at 7 TeV. More recent
 # tunes and tunes for other centre-of-mass energies as well as more usage
 # instructions can be obtained from this Herwig wiki page:
 # http://projects.hepforge.org/herwig/trac/wiki/MB_UE_tunes
 # The model for soft interactions and diffractions is explained in
 # [S. Gieseke, P. Kirchgaesser, F. Loshaj, arXiv:1612.04701]
 ################################################################################
 
 read snippets/PPCollider.in
 
 ##################################################
 # Technical parameters for this run
 ##################################################
 cd /Herwig/Generators
 ##################################################
 # LHC physics parameters (override defaults here) 
 ##################################################
 set EventGenerator:EventHandler:LuminosityFunction:Energy 7000.0
 
 # Intrinsic pT tune extrapolated to LHC energy
 set /Herwig/Shower/ShowerHandler:IntrinsicPtGaussian 2.2*GeV
 
 # Minimum Bias
 read snippets/MB.in
 
 #Diffraction model
 read snippets/Diffraction.in
 
 
 #################################################
 # Analyses
 ##################################################
 
 ## Comment these lines out in order to use rivet analyses
 # cd /Herwig/Analysis
 # create ThePEG::RivetAnalysis RivetAnalysis RivetAnalysis.so
  
 # cd /Herwig/Generators
 # insert EventGenerator:AnalysisHandlers 0 /Herwig/Analysis/RivetAnalysis
 ## Some example analyses
 # insert /Herwig/Analysis/RivetAnalysis:Analyses 0 ATLAS_2012_I1084540
 # insert /Herwig/Analysis/RivetAnalysis:Analyses 0 ATLAS_2010_S8918562
 
 #set /Herwig/Analysis/Plot:EventNumber 54
 #cd /Herwig/Generators
 #insert EventGenerator:AnalysisHandlers 0 /Herwig/Analysis/Plot
 
 #insert EventGenerator:AnalysisHandlers 0 /Herwig/Analysis/HepMCFile
 #set /Herwig/Analysis/HepMCFile:PrintEvent 1000000
 #set /Herwig/Analysis/HepMCFile:Format GenEvent
 #set /Herwig/Analysis/HepMCFile:Units GeV_mm
+## Note that if you do a parallel run leave the line below commented
 #set /Herwig/Analysis/HepMCFile:Filename events.fifo
 
 ##################################################
 # Save run for later usage with 'Herwig run'
 ##################################################
 cd /Herwig/Generators
 saverun LHC-MB EventGenerator