The Avid Single Digit V brakes on my Surley LHT are grabby and screechy. I have set the pads carefully to be just barely towed in, as suggested in several other posts, but that has not solved the issue. I noticed that the brakes wiggle a bit on the posts, so I put plenty of grease in there to dampen any vibration, but that made no difference either. I've started with the pads that came with these brakes, and when they wore out I replaced them with Kool-Stop pads. Both sets of pads had this issue.
What tricks are there to making V brakes work best? Are V brakes supposed to act this way?