jfarleyx
Ten Points cranks system is about as noisy as your typical ratchet for automotive work.
The click seems to bother some and others don't seem to be bothered by it at all its a personal choice you have to make after hearing it. It does have a silent mode but when its off so is the ratchet lock meaning if you start cranking and let go of the crank half way up with it off it will spin freely until the string is at rest again. That could be very dangerous.
Just what I know about the ACU-50. I have the ACU-52 rope cocker on mine and I like the fact that I can't leaver the cocker behind when going out to my blind or stand.