are the PSAS 4 noticeably better than the A/S 3+ ? I just put the eagle exhilirates on order, but open to these as a consideration...
I had the A/S 3+ on a different car (TLX w/ 19" wheels) and was not impressed.
for A/S 3+ I wasn't " wow'd " in dry, I was rather disappointed with rain handling, and snow was trash but overall everything was manageable, i was just surprised i paid so much for so little performance that I read about online.
Yes, the AS4 are better in the dry. I found the AS3+ fantastic in the rain though, not far off of PS4's in that regard, the AS4 is pretty similar. The AS4 are much, much quieter, they have a smoother ride, but still have decent sidewall feel and they're better in actual snow than the AS3+, not great of course, but better than the AS3+ which were one step above useless.
One question, for your AS3+, did you have a V or higher speed rating? The difference in the H or lower speed rated ones are pretty significant, I really wish they'd use different names for the two. The same thing continues on the AS4, totally different compound on the V and higher models, and also worth getting the XL rated sidewalls.