When you get cut and start hanging a part of the weight will be supported by your skin. This will result in skingrowth at the base, hairy skin from your pubic area will move up your dick. Most cut hangers welcome the extra skin but it doesn’t really makes sense for you if you get cut.
I think what makes cut hanging easier in the beginning is even if your hanger doesn’t get a good grip on the penis it won’t slide off. When you’re uncut the hanger will slide off.
Don’t get cut just because you don’t know how to work a hanger.