That's not quite what I meant. The idea is that you can land on, say, Minmus much like you would land a plane on Kerbin; use the wings to kill your vertical velocity, then use your wheels to kill your horizontal velocity essentially for free. Trouble is, wings don't work on Minmus, so you've got to use engines or RCS thrusters. I'm saying it'd be very handy if your mod could automatically control descent speed while ignoring horizontal velocity.