ducatipaso.org

Roadtec and the angel share the same tyre carcass I think sportec and diablo always used to as well

using roadtec Z6, can't comment as they are the only tyres I have used. Still round and black.
The rear haas gone a little flatter after a 3000km tour,
I have done an advanced riding track day, seem ok, I didn't fall off , but then I wasn't riding that fast.

I was told that a 'sport' tyre takes too long to warm up on the road, if ever, so grip is poorer.
A 'sport touring' tyre warms quickly to give good grip even in cold slow conditions, but ultimately is not a track tyre.