When I switch from physics mode to arcade mode, my ship's forward motion will activate, but only at the speed of velocity before switching - I must wiggle the throttle up or down a bit to get it to update. Using a Saitek X45 throttle unit.

This is probably because the joystick throttle only sends information when the throttle changes position. This means they'll have to throw in some fancy throttle-position-remembering code to fix it.

I figured as much, but such code would be the sexy - especially since they already do it with in-system jumps. ;)

I'll see what I can do.

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This is why this game rules. Uber, uber devs.

Hmm. I was looking at this and now remember why launching from the station and warping/jumping into a system ignores the joystick setting.
If someone has a joystick with their throttle set to zero when they launch, they would stop right at the launch bay of the station. This is undesirable and we want to keep the player moving regardless of the setting.

Switching from physics to arcade mode should read the joysstick throttle and set the desired speed to that instead of the current velocity.