I borrowed a pair of quarks and proto cobras for the winter from the Seattle reps. I've climbed 15+ day on each pair in the last 2 months. I've tweaked both sets of picks. The quarks are way easier to clean, which I'm going to attribute to a significantly more beveled cutting edge. We've had some chilly days here in Ouray, so I just narrowed the cutting edge and point to cut down on dinnerplate-age. It worked great. The BD picks are a piece of work. Bust out the tunes and a brew, pull up the crazy creek chair, and bevel the shit out of just about everything. I left the aggressiveness of the teeth intact. You barely need to flick your wrist to get 'em to stick, and I'm cool with that. I took a bunch off the sides of the teeth, though, which is the more tedious part, in addition to narrowing both the front of the point and the cutting edge. The work paid off, but it was a pain in the adze.