rmw, you're absolutely right about the reliability. No cord to slip or break. No springs to do likewise. I mounted a MZE on my Pearson last year and feel it's about as reliable as they get. Consider, this thing has been around for over ten years. I know the guy that invented it and when. He just had to get someone to mass produce and market it.

As for speed. Darn, I never thought to chrono the before and after effects. But thinking that it isn't connected to the string I'd think speed loss or gain would be minimal. About the only thing I altered on the thing was the hook. I chopped about an inch of it off. Just didn't need all that extra sticking up to catch brush or whatever. A little moleskin on the hook and it's silent as a mouse, too.

I put thousands of shots through a bow each year, and this thing hasn't failed for even one shot. More than I can say for the other 8 drop-aways I've had on my bows.
I did have a guy come into the store one day with a Shaky Hunter that wouldn't work. Seems he dropped his bow and bent the bolt that the launcher pivots on. I played around for about fifteen minutes, got it strightened out and it worked fine after that. But just something I thought I'd bring up. People like the rest, but I guess something like that can happen once in a while.