I've had a Muzzy for 5 years. It is absolutely the greatest thing since sliced bread and all those naughty things you can think of. I have it on a Darton Maverick. Wouldn't change for anything.

That said, I understand that they have had more problems tuning and setting them up with all these parrallel limb bows. They've had to come up with new pieces to fit a lot of differently made bows. Before you absolutely decide that's it, I'd pick the brain of someone who has it or has installed a lot of them with success. The parallel limb design has given us a lot of neat things, but in the process has added some problems to work out. As they come up, Muzzy is correcting them. I'll always have one. If my current one fails I'll buy another.