Well NPP is certainly a dryer compound than deca, but it is still nandrolone, so you'll have to up that test dose to get anywhere. You should start with a test dose double your NPP dose. Quite frankly Id switch testosterones to run NPP. Id run Sust or Prop with NPP. Inject Sust w NPP MWF is a nice schedule and you can hit 100 npp w 200 sust giving you 300/600 a week.