First of all, I apologize for yet another 10 speed auto thread, I know there are a lot. I'm just trying to be as certain as I can that this is indeed the issue before I start throwing money and parts at the car. I've only tracked the car at my closest track, Roebling Road Raceway and been there about 5-6 times with the car. Ambient temp has been anywhere from 50-75 degrees. The first two times out I ran some high 1:29s and low 1:30s, but just getting use to the car. Went home put some Nitto's on and some Steeda suspension components, and went back for another track day and now I'm running low 25s. Problem is I can't get but about 5-7 laps of hard driving before the trans temp gauge is creeping close to 230, when that happens and at higher speeds shifting down the front straight it "miss shifts" (don't know the correct term) or falls on it's face. It's like it doesn't know how to make up it's mind. RPM's will get close to redline, car will try to shift but feels like it bogs when it shifts and then has to pick up and go again. Other issue is that when it does this, it will also spit trans fluid out and must be hitting the exhaust, because a puff of smoke will come out the back of the car. I immediately do a cool down lap and bring it in and sit for a while. But once it gets that hot, I can't hardly run it again, because it's so heat soaked, it takes forever to cool down. If I go back out anytime soon it will run like a champ those first few laps until the temp gets back around 230 and then it starts again. I feel like I'm just driving it too hard (but that's the point right) and it can't get rid of the heat, but does that sound typical to you guys? I should've mentioned is a 2019 GT Premium, it's not a PP1, PP2 or anything like that. I didn't have these issues the first two times out, but the harder/faster I go the more it seems to happen. Does it sound like the typical A10 issue that most have, or a fluid level issue, or something else entirely? I've already got a parts list of cooling upgrades I want to do based off other threads here, but didn't want to start down that road if you all didn't think that sounded right. Sorry for the long post but thanks very much for any help.