At first he was great and extremely helpfull and then he didn't like something with my build and got all upset and calling me a failure and this that and the other and then proceeded to gloat about driving around lake Tahoe in his corvette and up until this point I had been nothing but respectful but just a heads up guys, this guy was a grade a *** hat and I will not be doing business with him any longer he missed an opportunity for a repeat return loyal customer, but I will be taking my business elsewhere.

Wow, I'm sorry you had a terrible experience with him, I had the exact opposite experience. Others tried to iron out my SD small cam, Vortec head tune with no real success.
I spent all of 10 minutes on the phone initially answering a few questions and the first chip he sent was damn near perfect! I data logged a run and at his insistence he burned 2 more tunes and it's better than I had ever hoped it would be.

And previously I had resigned myself to a car that couldn't be driven out of the garage till it warmed up and went into closed loop. And he very reasonably priced too.

Again, I'm sorry you had trouble.