I've never used tren but everyone says "tren is tren" don't expect the same look or drive in the gym...
100mg tren seems way stronger than 100mg npp. I mean, lot's of women can handle NPP, but tren? NOt so sure, but who the hell knows what them shemales are injecting now, lol?....
Npp was kinda weak, adding 700mg of it had hardly any effect on me. I already was on 700mg or so of prop and for a mere few extra lbs and being slightly leaner, to double my gear doses was not worth it at all.