jonesy sorry you are bummed man - now myself i like it - but i understand that this tatt has alot of meaning in which the details play an important part
that said - it sounds like your artist wasnt paying enough attention to the details in design AND execution - I wouldnt mess with it personally (the idea has been captured - rock that badass faked line tatt) but if you must - I wouldnt go back to that artist - you dont owe him anything
just my 2cents - good luck