Also, I took the still-unused 265/645 Wets off of my extra 18x10 wheels and had the 285/645 slicks mounted. The rims *still* aren't well-protected, even though I'm sure 10 inches is a good width for these 285's. Part of the issue is probably that race tires don't have rim-protectors built into the rubber mold, and that these Forgestars have particularly thick rim edges. When stacking these on their sides, the metal of the wheels don't touch each other or the ground, but it's just by a hair's width. Set them down too hard and you can hear them click into each other. I think I just have to live with that for now, because otherwise this setup should work great for trying out these cheap slicks.
Assuming no other major issues get in the way (like my car blowing up and/or dying), I think my general plan at MSR-H this weekend is to spend most of the weekend on my existing RS3's, then maybe switch the slicks on for the 3rd or 4th session Sunday and scrub them in over a whole session slowly coming up to full speed. Then they'll sit for a week for that whole mfg-recommended rebonding process and I'll try them again at COTA the next weekend (with the remaining life on the RS3's as a backup option. I might even start out on the RS3's and then switch to the slicks later in the weekend instead, so that I'm super-comfy with the track/event before adding that new challenge back into the mix. All depends how things feel during the scrub-in session this weekend).
Pics, off the car sitting at 25psi cold pressure (I suspect I might need to start them even lower than that, still researching):
