Xenon injector ud after adding junk code?

Hi I was wondering if Xenos injector would be ud after adding junk code
I saw this video on YouTube but checked with sigbench and it was only a 18% difference:

one guy from across experimented that around 20-30% is enough to be ud
but i usually use 30-50%..because reasons..
oh and the dll also need to be ud if this wasnt obvious enough

how to use sigbench? i already download that but dont know how to use