I do it.
I don't take much off and if I am starting to press on Ellie's quick, she cries before I cut, so we have never had a bloody mess.
She has been getting really upset about it lately though. I think something is bothering her, so if that continues a tech might have to do it. The only thing is, some vets and techs don't care about making them bleed and if that is going to happen, I might as well do it myself.