Before I went to the track for this visit I match-marked my tires and rims so I could tell if they moved relative to each other. They did! Looks like they moved about 8-9" on each tire. I don't know what else I can do about it though. I don't want to drill and screw them in. I ordered these wheels with knurled bead seats and thought that would be enough. Maybe they just had to heat up and settle into the knurl grooves. I hope they don't slip much more. I'll mark 'em again before my next track day.
Left Wheel
(2 marks on opposite sides)
Right Wheel
(2 marks on opposite sides)
I didn't notice this until after I returned and put my wheels away in the garage. Any suggestions other than drilling and installing screws?
--Cal