[Excaliber]

I wouldn't advise 'bailing out' on your current technician, unless you think he is grossly incompetant. He now has more experience on your symptoms than the next guy, who would have to start from scratch.

Having said that, sometimes going to the next guy seems to work out rather well. Many times, he just got 'lucky'. He might listen to your story and try the next logical step, as the original mechanic might also have done! Don't assume because the second guy fixed it right away he's 'Mr. Goodwrench', he just took advantage of the first guy diagnostics routine!