Just watched this video to get some background on the IM special axis issue.
https://forums.robertsspaceindustri...ook-ahead-joystick-and-interactive-mouse-vjoy
Interesting how the mouse has this smoothed response.
I think if joystick users really wanted that, an AutoHotKey script could be created right now that would set mouse inputs as a function of your joystick inputs for a custom combination of both with whatever curves you want. For mouse users wanting more control, they could set up a similar script and use VJoy for a virtual joystick with its inputs fed by a similar AutoHotKey script based on your mouse position.
If they took away mouse axis stacking, it wouldn't matter because people could put it back with the methods I described.
It looks like the issue is a lack of an amplification option for look-ahead mode for joystick users determining how much your thrust is changed based on your inputs. That mouse IM effectively has one which is set to a low setting.
It's been an interesting discussion to watch. I think requiring a HOTAS to compete would certainly reduce the market size. On the other hand, I think there's a better solution out there than what's currently leading to putting a trackball on a joystick. The key is to add very detailed options for mapping everything that's available with custom responsiveness curves.