These problems are very easily solvable.
You can use RTV silicon to mod your charging handle into a Gas Buster like handle, or drill small ports into either side of the CH body.
And if you take a standard barrel (DD 16.1'' CAR Gas = .058'' port) and have it cut (10.3-11.5), and just not have the port worked on, you should have (close to if not exact) a gun specifically tuned(ported) for a suppressor. No gas in face, no extra recoil, no extra decibels, etc.
IMHO, a gun shouldn't be run suppressed unless it's tuned for it.
Me, Eurodriver, and Grant can all attest to that.

