Powder is H110... Right now recoil in the hand is pretty firm, and even with a firm grip muzzle rises to 45* or so, then pulls my forearms up a bit. I am not much of an auto shooter, but it looks like the gun is in recoil for about .5 seconds on video. I can probably bring that down some w/ my grip, but it is a handful.
If the comp was not any help, I was considering either cutting it down shorter so that it would be less effective, and just letting it 'help out', or else running a longer barrel with porting on it. I figure the longer ported barrel would be less effective, but may soften things up just a bit while increasing the velocity some.
-Edit- It wouldn't have to be the Jaeger, the Carver looks like it has a couple more side ports, it may be a good candidate.