Thanks AyJay, was an option I didn't think of... my tyre fitter has suggested 'Metzler Road 3', but i will look at the Bridgestone option
I ride them harder (higher corner speeds and bigger lean angles etc.) so I would have expected them to wear faster.
Another vote for T30's from me. I would rate them significantly better then 023's which I used to love. I can't speak for life yet at as @6k they are still showing no signs of wear from the saddle. The threads aren't as deep and there is a hint of squaring on the back but they don't 'feel' like 023's did with the same milage. I find this a little odd since because of their better grip and confidence, I ride them harder (higher corner speeds and bigger lean angles etc.) so I would have expected them to wear faster.
My fear about the pricey T30s would be getting a puncture and having them written off. I liked the BT21/23s for longevity. Only got my fzs1 a couple of weeks ago. It's got weird treads on the side. Might be Metzler? They do the job.
you can get a pair of pirelli diablo stradas for 128 delivered from bikespeed