It goes against the grain
It goes against the grain to give five stars to something that seems to be a medieval torture device :-) but after a prostatectomy closely followed by a kidney stone removal I leak and the Freedom Clamp works quite well and overall is comfortable. The only other clamp I've tried is the Pacey Cuff and found this more comfortable, easier to use, and it costs half as much.
I'm not sure what all the attachments accomplish. I use the standard; I've not found the others make much difference.