Ive had Roadtec 01, now on PR5 and tbh cant tell the difference but might try the trailriders next time.
The Rt 01 are a good tyre , but they do seem to make the front end , lets say , wander under braking which can make the bike feel unsettled but still a good wet weather tyre.
The PR5 has the same grip in the wet but does not wander under braking and given the choice the PR5 is the more stable tyre.
When away with the wife travelling to Italy I had the RT01 fitted and throughout the journey I kept saying to myself , I wish I could change these tyres as the feeling 2 up was magnified. Good grip tho.
I put the wander down to the additional sypes ( think that's what they are called) on the front tyre which in effect makes the surface move around more.