Born_inSANE if you're running process with -c- parameter, the output file will be bigger and better srepped due to using no compression.
If you're running process via drag'n'drop on exe it uses default -cb compression on output file so it'll be smaller but worse srepped
the right choice is -c- and bigger output
BTW: when I told about drag'n'drop few posts above I mean drag'n'drop to bat file, not exe