I'm running Gravity USGT pre-glued tires right now. I have 1' toe-in at rear and just under 1.5' toe-out in front. There is definitely slop in the steering that I plan to address. I also noticed that I don't have my holes centered perfectly on my body for the posts. So, I did see a little bend on the posts. However, I also ran the car without the body to see if there was much difference. Didn't see much, but things could add up so, I'm going to fix that too. I also want to find a surface that I know is much more flat and true. I think the one time it jetted right was because I hit something in the parking lot. The parking lot is pretty clean but it's still a parking lot and running at about 4.5mm ride height is not doing the bottom of the chassis any favors (I'm starting to build an XV-01 tomorrow so that should do fine as my parking lot driver and I can keep the XI Sport on carpet at the local track). Thanks again for all of your help. I'm going to keep tuning it.