For those having issues with Guide brake levers not returning, my LBS got SRAM to warranty them and also upgraded them (RS to RSC). Anecdotally they had 3 warranty repairs including mine that week. So far they feel great. Not certain if it's a redesign or a recall, but if you are having similar issues take it to your LBS. My brakes started to act up ~9 months since I bought them. Bleeding and brake pad replacement and piston cleaning did nothing.