I've been running the RA881's (the pre-decessor to the 888) recently. I was running the kumho v700's prior to that. I run bloody great 225/50/15's on the tank...

the v700's behave more like a slick, they take a little bit to come in, and were happiest on the circuit. They are the best value tyre I've ever run...

the 881's work from cold, but feel softer in the sidewall than the v700. The 881's are superb hillclimb tyres, I' havent run them on the circuit yet.

They both weigh a ton,feel quite sloppy compared to slicks and raise the gearing up one ratio. If money was no object, and I wanted to run a light 1200 on low profile DOT rated tyres again, I'd go for the Avons..
I also hear that Kumho have released a low profile 13 inch tyre. I cant wait to see it!