Stiff transmission

mikes4397

Hey everyone, just got a really good deal on a leftover 09 370Z manual with the sport package a few weeks back. Got the car with about 70 miles on it so for all intents and purposes it's brand new. Anyway, I currently have about 700 miles on it and am wondering if I might have a problem. I am encountering a lot of resistance on shifting, more often than not going from 5 to 6 or 6 to 5, where I basically have to put it in neutral and try again because I really don't want to push/pull too hard on the stick. It's not happening on every shift but does happen occasionally. I've been driving manual for a few years now and the only similar experience I have is on an 04 S2000 that wouldn't make the 1-2 shift in really cold weather before the transmission warmed up. Should I be concerned? Will this go away once the car breaks in? Anyone else have any similar experience? Look forward to your responses.