Good change with the lowered damage interrupt threshold which should at least mitigate some of the very frequent bounces, but it's more of a bandaid than anything. To go to the root of the issue I'd like to see animation based glances (so they're as consistent as possible), swing animations modified to be focused more towards the front (should also drastically reduce unintentional glances when animation based), and based on that tweaked damage curve to have more consistent damage throughout the animation.
It's also fine to increase the headshot bonus, however with ranged already being so strong, you should consider looking at more ways to balance them asap. Add small side force fields since most shields still have none, increase them for the smaller shields, reduce maximum accuracy period (how long you can hold an accurate shot), draw speed/window to maximum accuracy, etc.