Hi,
I have used several different pads while i have been riding trials, i have used heatsink blues.
I know this isnt my topic but thought it would be better to put it in here than to start a new topic, when i used these pads i found them to not be that great on a smooth rim with no tar, yeah you can use tar but what is the point because you can make a black pad work well on a smooth rim with tar.
i decided as they were not gripping to my high expectations after using koxx block browns and plazmatic CRM's to put them on a grind. This grind was nice and sharp, when i used them on the harsh grind they were amazing to say the least but still not the same as plazmatic CRM's or Koxx Blocks,
out of intrest are or were you running tar?