Ditto - I got a Ridgeline 29 medium, then saw the MT large, so heck, got that also! Then scored a Waltly (Chinese) Ti custom medium.
Built up the Ridgeline with XT 2x10, thinking of building the large later to compare. I like the Ridgeline fine, so never built the MT. Did build up the Waltly, and it scooted like a Porsche! Unfortunately I was looking for a TD ready rig, and although the Waltly was insane fun, needed the stability of the Ridgeline.
Cons: Main triangle is one half the size of my previous alum frame. Not a big deal as I make my own bags, and have cut way down on crap to carry.
First test will be the 2017 TD. Third try.