I found with mine that it shifts beautifully with 2 exceptions but they probably made mine wrong: 1-2 upshift at 6500+ has about a 10% failure rate (some bad synchro noise and a sick feeling in my stomach) and a skip shift from 3-6 coming off on ramps balls out to cruising speed just doesn't go in 2% (no noise or anything but then it becomes very difficult to get it in any gear without both hands but then once it drops into gear it's fine again). If they weren't only from high rpms i would complain to a dealership but right now with nissan the way it is that is pure voidage FTMFL. Gonna try redline see if that helps.