I currently have one of the .45 barrels from Luke over at ASG. Every part of it is awesome. Perfect length, weight, all that. I also have a factory 209×45 barrel for my original contender. I know those are supposed to be for G2’s but I made it fit. I really hope the MGM barrels will work on the early frames and not just the G2’s. I would by an MGM barrel if it fit my easy open frame.
Sounds like most of it has all been worked out. I know I’m a little late to the game as far as input goes. I will recommend looking at the Harvester sabots if you’re doing testing in warmer weather. Heat is the worst thing for a sabot regardless of brand but the harvesters tend to be a little softer and have more give, where the MMPs will blow.