i've only had two artists touch me. both buddies, The guy that did most my work, my sleeve and back, did all my brothers stuff, minus the new piece he got to start his sleeve while he was back on leave from iraq, but that artist actually joined the army. i got a piercer friend of mine, who's kinda like a tattoo apprentice as well as a piercer, did a dragon coming from a lotus on the outside of my calf, well, a little in the front to a little of the back of my calf, and he's gonna do a samurai on the inside of my calf soon, so all my work is pretty cheap, granted, its not paul booth or whoever quality work, its still great work in my opinion, but most my tattoos don't have any meaning behind them anyways, so to me having friends do them makes them all the more "valuable" if you will, to me.
but yeah, i see where you're coming from with him not being super experienced with certain techniques, but i mean, he's gotta learn somehow you know, and if he's beeing doing it for 4 years, he's probably pretty good at what he does, so even if he makes a minor mistake i'm sure he can fix it.