[northwind]

I used Roadtecs, which are essentially the same tyre, some minor differences but the carcass and construction is the same... Always preferred 36/39, they had a bit of a disconnected feel below that, which some say is sidewall flex- I've no idea what causes it though. Above that, I found they lost a bit of grip. I dropped them to 30/33 once for a trackday and ended up borrowing a pump to put them back up, they felt like they were flat.