I must say the regals holds good, in the wet I havn't had problems unless I boost then I loose traction easily, but I think all tires will loose traction in the wet under boost....
I did the same thing and researched it, went out and bought the Proxes 4 and they are rubbish. They are more for lighter cars so they roll alot on the sidewalls. I drove for 300km then took them back and got the T1R's. If I had stayed with the Proxes I wouldnt have an sx anymore, I would of crashed and died.
It seems it is the same as everything else, there is 2000 opinions about everything and you still don't know what is best, the ratings rate proxes 4 better but in the end I stiil don't know whats best....