I've used both T1R and T1S and Hancook Ventus V12 EVO K110, on fwd, rwd, 4wd, from basic 90bhp fwd to 450+ rwd.
A choice between toyo and hancook, trust me if you had ever tried hancook, you'd never ever think of toyo again, the "S" version was massively better than the "R" version toyo anyway, also used F1 gsd3(never again, except maybe a wheelbarrow), rainspoort 1/2 vastly better all round than toyo and f1, vredestein sportrac 3 are also worth considering, much better than F1.
As already said best tyre I have used to date, I am very interested in tyre reviews and will change make very year if something better comes along.
One of the massive good things about the V12's is the stability, they are just so utterly stable even on bumpy/crappy surfaces.
A recent/ish test is Sepang between the V12's and dedicated(dry) track tyres saw the V12's lose out by around 1 1/2 sec a lap in the dry , and again by a similar amount in the wet with dedicated wet track tyres, odd thing was though it wore out 3 sets of dry tyres 2 sets of wets and was still LEGAL to drive on the tyres, as in not worn out, though I'm not aware of precisely how much tread was left.
A lot of serious bhp guys in the us are using the V12's on the vettes, right after purchase taking off the purpose designed goodyears supercar tyres, after driving others so equppied with V12, and saying things like better in every respect, some of these on 1000+ bhp rwd.
My v12's have done around 4,000 miles now, but don't look like it, I expect at least another 8-10,000 based on what I can see at the mo.