All

The Thomson is trash. I had two, on two different bikes. Both snapped cables regularly (every 5-8 rides). Over time the lever needs thumb-breaking pressure to operate. The final one I pulled before I threw it in the trash stopped returning to full extension...between snapped cable replacements, that is. I now have two Giant Contact Switch SL's. The oldest has survived seven punishing months of PacificNW wet, crud, and snow. It's still smooth. Best of all, it works reliably; unlike the Covert, I never have to wonder and worry if the cable is going to snap and leave with either...