[CaymanMatt]

My only concern with the HPAS is how they'll hold up to occasional autoX use over the summer. I already get some minor scalloping on the PS4S and worry that AS tires will be even less heat tolerant. But I haven't been autoXing so much as to feel that a second set of wheels is justified. I guess if the choice is between summers + winters and HPAS + 200tw tires, I'd get more use out of the 200tw set vs winters. Still, the space and money for a second set is no joke!

Kind of in the same bucket. I've lucked out finding spare sets of wheels on FB Marketplace, but trying to decide myself on whether if I should just put some A/S on and use my spare set as autocross wheels (vs putting winters on them.) I generally avoid driving if inclement weather is going to be crazy (mostly because I dont trust anyone else on the road 😂) and I'm not driving at 9/10s on the street.

I guess another option is to have three sets of tires (summer, winter, and autox) and swap them back and forth.

Best bet IMO is a set of 19" wheels with the AS's and then reshoe your 20s with the autocross tire of choice. Swap over when necessary.
FWIW

 

[CaymanMatt]

I appreciate all the discussion on this. I’m thinking the best route is to buy a second set of wheels and for the climate here, mount some Michelin Pilot Sport all seasons.

When are most of you making the switch? I’d guess early November through end of March is probably the best time for the all seasons around here.

I just run the Michelin PS4A/S year-round. For me, they are that good. The PS4's were just used for autocross and yes they do need to be replaced with something more appropriate. That's a next year expense.
FWIW