I'm a big fan of Coolermaster's mice, they are high quality, well priced and very responsive. I own both a Recon and a Havoc myself. I'm going to have to switch to a vertical mouse to ease tension on my wrist and I was disappointed to find out that CM doesn't offer a vertical mouse. Unfortunately I will have to switch for a new mouse for the time being. I'd like to see CM release an ergonomically designed mouse someday, and if it was worth it to switch back I would in a heartbeat.