front tire cupping

[MrVvrroomm]

I don’t ride in rain very often but the few times I have there as been no instances where I felt any tire slip with either the III or IV.

I never plan to ride in rain. Unless I'm riding cross country, I never leave if it's raining.

I read all the time riders commenting on how much better traction X tire has in the rain. I call bullshit.

Have you really ever had your bike slip on wet pavement, other than riding over paint on the road? Don't even get me going on tire X being better than tire Y over tar snakes. Tar snakes are a hazard, period. They are a hazard just as sand and/or gravel. It's a feature of the road to be dealt with. There isn't a magic tire for tar snakes, wet or dry.

I tend to ride aggressively, much less so when the road are wet.

Any brand name tire with tread life remaining will out-perform most riders in most conditions.