I would imagine if you handle Deca, you will handle NPP fine. NPP is to Deca as Test P is to Test C. It just has a short ester vs long ester.
I am curious about your anadrol experience. I am thinking of running 50 mg split into two doses per day for 6 weeks after my cut. I plan on just running my TRT dose with it. It is supposed to be quite a powerful mass and strength builder. Seems to be a really good oral.
I would also run liver support with it. I think some of the liver toxicity claims are over blown. I have read research papers, and one of them they had the test subjects run 100 mg per day for 24 weeks. Another one was 50 mg and 100 mg groups for 12 weeks. The latter study showed that the fat free mass gain between the two dosages was what I would consider not worth the extra risk. The 100 mg group gained about 1 kg more than the 50 mg group in 12 weeks. Fat loss was about the same between both dosages (about 2 kg). I would still be conservative and run for 6 weeks at 50.