First - my riding style is average. I don't thrash it everywhere. I've never had my knee down or scraped a peg - but I do ride it like a litre bike when conditions allow.
I replaced my BT023 with the T30 Evo earlier this year as i'd lost confidence in the rear tyre. It was sliding out wide on roundbouts (I live in the UK) - which are usually fairly low speed - and on faster bends, leant over more (I aint a knee down merchant btw) - it was even worse.
Under hard acceleration it was squirreling about as well - which had never happened before. It had squared off slightly with approx 3k miles - which I don't think excessive.
I can't compare them to any other manufacturers as I've always used Bridgestone - BT016 / BT021 / BT23 / T30 Evo
The reason being that 1) I've had no problems 2) It's an expensive mistake if you don't like your new rubber 3) Nobody makes bad tyres these days
So what do I think of them? To be honest, best tyres I've ever had. After scrubbing in, I felt more confident everywhere. My lean angles increased. Acceleration caused no issues. I've ridden in rain & didn't think too much about it - I slowed down anyway as I always do in wet conditions.
I've done more Motorway /Freeway miles than ever this year, & the dual compound harder middle seems to work.
Would I recommend them? Absolutely. I'm doing a track day next week (Ron Haslam Race School) & all his bikes are fitted with them. (Honda CBR600RR / CB1000RR)
Unless Bridgestone bring out an improved tyre, then I won't hesitate to replace them again with another set of T30 EVO.
Hope this may help