Hi Tony...there are many, many musicians who are NOT schooled, yet they still pack them in like yourself. But.....I DO know how something like that could override your "packed house" and play on you, especially if you're a perfectionist.
I really envy you having played in the Pubs & Clubs for so long. It doesn't matter how good you are there......those places are for one thing only....having fun! For both you AND the patrons. I'd give anything to be back there doing that.
The M3 I would only buy as a supplement to an arranger. And I'm having a hard time with what's on the market now. I'm keeping all my options open, including the OASYS.
Lucky