I glued up a set of M3 Revolvers last night with those new black Evo2 inserts - seriously lightweight combo! I've also got some Calibers but not mounted yet, but not sure they'll really work except maybe for the practice rounds, and I've got shed loads of AKA I-beams and City Blocks I could run if it looks like Calibers might work.
I'm planning on mainly running M3 Holeshots and soft Megabites - just wish the super soft Megabite had been available as a pre-mount in time