carelesslove, here !
I - too - have a M629-2 Mountain Revolver and thoroughly enjoy it ! Paired with a 5-screw pre-28, they make a great pair !
My Mountain Revolver has been "upfitted" with a Target Hammer, Combat trigger, and Kurac "Round-to-Squares (in Osage Orange) to dress it up a little.
Often unnoticed, the Mountain Revolver has 0.429" cylinder throats & a nominal 0.429" bore, making it a joy to shoot lead bullets - unlike all my other (older) .44's that have the 0.432" throats and nominal 0.429" bores.
Even cheap, 0.429" commercial cast bullets shoot well - higher velocity, no leading - equals more fun !
Thanks, Tom "carelesslove" Love