antfd3s

I was wondering has anyone else besides me notice the Nismo shifts rough?
I seriously dont like to flame my own car but the trans isnt a smooth shifter. At first i thought there was something wrong with the clutch/trans. So i let the dealers mechanics have it for the day. They said there wasnt anything wrong with it. I was in dis belief. I didnt except there 10 mile inspection at first. They told me to take a base moldel 370 for a drive. It shifted the same way but not as bad. After that test drive with the base model 370 i was sorta convinced that its just how these cars are. My 350 didnt shift gears like a truck howcome the 370 feels like this? Should i go get a second opinion on my car? What do you guys think?
Also i talked to a mechanic that used to work for Nissan about my situation and he said, they use the Frontier trans in the Zs???I dont know if thats true.. I just ended up getting used to it. I tryed using Royal Purple Synchromax it made it shift a little better but not by much. Any advice would be appreciated. ty