I suggest adding a "Test Guns" feature in the Hanger.
When you set convergence for several guns, or sets of guns, you can't see the effects until you spawn, take off, pull up .target, and fly directly North.
Why not add a button to the clipboard on the Hangar page, directly beside "Set Convergence," called, "Test Guns."
The Test Guns feature would put you in the cockpit of your plane at the test fire range behind the hangar, with tail elevated, and with the plane directly aligned with the target. You could still change target distance by .target and a number.
With this feature you could jump back and forth between Set Convergence and Test Guns before takeoff to ensure convergence is set the way you want. Make sure ammo usage in the Test Gun range is unlimited, so that when you spawn you have the full load you selected.
