the Ergon grip with the mag ends. They're on my straight carbon bar tandem. I've had them for 8 months now, and usually go between 30 and 45 miles at a time. I've adjusted them 2 ways. First the pad so that it sucks up pressure, and then the bar end. I actually have the bar end down a little to mimick the top of a race bar, so I have 2 positions. I also cut off the bar ends about 75mm. These Ergons have a system that you don't have to worry about clamping pressure, but of course, use a tool for proper tightness. So you have to play with both positions, until you find one good for you. No problems for me, and I like the larger surface, and the bar ends.
INDY