Well I'm on my 4th set of tyres as of Friday after a blow out. The last two sets were GS-D3's, which I loved, and had them on a number of cars. Fantastic in the dry and just as good in the wet, and on our soft uneven volcanic clay roads that's saying something.
So anyway, as I couldn't get hold of any F1 Asymmetric the GS-D3 replacement, ended up going with the Yokohama Advan V103. I've only had them on about 100kms thus far, great in the dry, seem very good in the wet so far, and it's been pouring down today. Good lateral stability, it's improved the steering & braking response and reduced understeer & oversteer a bit. I was a bit trepidacious to start with, as they're not aggressive directionals, but seem good atm.
They come stock on Bentley Continentals, so I'm not sure if that's a good or bad thing.
http://www.yokohama.co.nz/advan_sport.html