I originally had a Mesa M9 when they first came out. Loved the sound. But then I got lazy and started taking my GB Shuttle 3.0 on my smaller gigs due to the lighter weight.
In a moment of weakness

, I sold the M9 and picked up a Shuttle 9.0. I've been using that for the last year or so. While the tone is good, I've never forgotten that M9 sound.
Recently an M6 Fathom came up for sale and I bit. It came in yesterday and I gave it a once thru in my basement. Nice!

The real test will be on a gig this Saturday night. The rig will primarily be a Sadowsky WL and a Bergantino AE410. (When I had the M9, I was using a Epifani UL410 so this will be a slightly different sound for me.)
It's good to be back in Mesa land.