I'm a big fan of everything Paizo is doing, and so far I love what I've seen of PFRPG. Basically I was ready for a new edition, but 4e was not to my taste - PFRPG was exactly what I have been looking for.
Unfortunately my group is mired in the middle of two 3.5 campaigns. We started a Runelords campaign just before the finalized rules hit - I tried to "rip off the band-aid" and convert everyone over to PFRPG on that campaign, but I met some pretty heavy resistance (particularly from one player). Basically my group is comfortable with 3.5 and is unwilling to take the plunge to PFRPG.
I don't want to stop playing with the group or make too many waves, but there is so much more I like about Pathfinder - I really feel it is a better rules set.
If history is any indication there was a similar resistance to 3.5 when it released. The group allowed moderate changes over time, and after a while the group was playing (more or less) pure 3.5. Even though I'm much more of a short-and-sweet, let's-convert-and-be-done-with-it kind of guy, I'm thinking if I start incorporating some of the subsystems I might be able to get the group to come around.
I'm trying to decide the "easiest" parts of PFRPG to drop into 3.5 - I really like the new Skill system, so that's sort of a no brainer. I was thinking maybe CMB and CMD. Part of me wants to give them the additional feats - Players do so love their Feats.
Anyway - I'm wondering if there are any thoughts. Any unseen perils with this sort of thing? Does anyone have similar experiences transitioning a group? Thanks all!