I got the mastercraft tyres, and they are much better than T/A's in the wet. Not sure what else is out there, but i think the whole big footprint of a 265 means that aquaplaning in the wet is your biggest problem. I think most tyres are going to have trouble getting grip in the wet.
I found them ^^^ and T/A's to be equally as bad in the wet esp when running a stally. Given a choice I would NOT run either of these tyres.
Herne
i believe the 285x40x15 yokahamas are great in the wet, they are directional tyres.
i have 2 of the new batch for the L34, but havent used them yet.
Wayne (outer control) has them on his L34 race car, so his opinion would be valuable.
I am not sure I wouldn't have clearance problems running a 285

Not to mention rego problems lol But its worth considering just the same.
Damn shame I can't try them before buying

Cheers
Herne