I have had over 100 revolvers, J frame, K frame, L, and N Frame Smiths and Colt I Frame (Big Grips). I have used Both Packymer and Hogue.... and found that Hogue being softer, almost makes it like the gun is sticking to your hand... unlike the Packymer. The Hogue has an open back strap, the Packymer is bigger... in some cases I think bigger may not be better. In the academy, I always recommended Hogue to most I have had conversations with.
Packymer on the N frame that you have, requires a huge hand... Hogue will not.