What Modification Do You Regret?

I let an "experienced metal man" mini tub my dart and he used it as a teaching tool. He let another young man do a lot of the welding and they turned out like sh*t!! I have spent the better part of the last two years slowly fixing what I paid to have done right. The guy who did it thinks he did an acceptable job and thinks that I'm a jerk because I'm still mad and won't talk to him when I see him around at shows and swap meets!!! :angry4: