Bruising and Discoloration From Clamping

I am doing two 10-minute sets of edging with the clamp and I’m getting some bruising midshaft and around my base.

Is this normal? I am hoping after a week or so the bruising will go away. Just like with jelqing when you first start back up after a break you get the usual bruising, etc.

I’ve never experienced bruising - other injuries from clamping, but not bruising.

I get some small bruise looking things around veins sometimes. A couple of them havnt gone away, but they dont seem to harm anything.