I've only played with the CDS for a couple of range trips and a few hunts this year. After the first range trip I spent 2 minutes on the drill press and installed a ball bearing zero-stop. Simple and effective. I wouldn't use one without a zero-stop. Will wait until I play with it a bit more in the spring to make a final determination about it, but I think it has promise.
I should note, when I drilled/installed the ball bearing, the adjustments became a bit stiffer to move. I'm guessing that I drilled the hole a bit shallow and the bearing adds a bit of resistance.
