I Don't blame you - he's a knuckle head. Real bad bedside manners. Does great work no doubt - my friend told me of another source for clamp ons and i would rather spend a little more on the next purchase elsewhere.I had a terrible experience with Witt. He makes promises he doesn't keep and if he screws up the customer service he refuses to deal with it or admit it. Great machine work and an initially personable attitude don't make up for truly deficient customer service. He even had the gall to challenge my credit card charge back after I never received any product. That was super insulting seeing as he wouldn't return any of my calls nor would he respond to emails.
I won't address the parts he makes beyond making the observation that he's enabling people to be cheapskates. Sets a bad precedent of mindset.