No experience of the Yokos but the P Zero Rosso are worth a look. I nearly went for some of these on the rears today to save some cash, but finally opted to go with a new set of trusty PS2's despite the cost (430 GBP a pair). I find the PS2 absolutely amazing in the wet and dry and last a long time too. In 33,000 miles (1,200 on track) These are only my first new set; the originals were pensioned off for track use at about 20,000 and I had got some 3/4 worn ones on a set of rims that I used on the road for the last 13,000. The ones I just took off still have 2mm of tread so will now be used for the track. The PS2's seem to recover from track use very well and return to a nice flat even profile after a couple of hundred miles. I'm now broke but much happier about next week's thrash across Europe to the Belgium GP and the 'ring. Tyre choice is always tricky since if you make the wrong decision you are stuck with them for quite a while, thats why I tend to go with what I already have experience with - I can't see the PS2's being beaten on overall performance, only on price. They are now OEM on the new 911's and M3's so we're in good company.