No Paxton related issues at all. I have had ABS failure (wheel speed sensor due to overheat), that may be related to higher terminal speed prior to braking, thus increasing brake temps. I have also had oiling issues. I have been overfilling by about 1 qt to prevent the left hand turn issue. That has worked pretty well. However, I have had oil coming out of the fill cap on multiple occasions. Note I use sport cups which have a little more grip on the track.
I should note that all of my track times have been at moderate ambient temps. No hot day events to note if there are heat related issues. I plan on installing a larger intercooler as I have noticed some power drop off as it gets hot.