Update!
Still running the Heatsink CNC Yellows. Managed to get a grind on my Trialtech race rim that they worked incredibly well on, with plenly of bite and hold. Lots and lots of hold.
This set seem to be wearing better too, with still over 5mm of pad left.
Now as said, I changed to an Echo TR last weekend.
Always had my rims ground, so decided to give smooth rims a shot. Built the wheel, tyre on, tube ect.
Cleaned the rim, ground the pads flat ( TT rims have a tapered sidewall) and got them as square as you could possibly get them, with the whole pad hitting the rim at the same time.
Wow.
It is incredible. The pads grip the rim like nothing Ive tried. They bite instantly, with a very loud honk to them. They seem to hold well too, but was using a borrowed frame so will have to wait until the weekend when I get my Ice to get some proper use through them.
Smooth rims seems to be a winner, even more so when I dont ride in the wet.
Black sidewalls look pretty swish too......