I was lined up for a graceful landing in a brand new 1A yesterday, and as soon as my wheels hit the ground, I lost control of the thing and got sideways.
As my gear broke off and I started sliding backwards on my belly to what I thought was a stop, I go to .ef and it tells me I have to be at a complete stop to exit flight.
When I looked a bit closer, I was still slowly sliding backwards almost unnoticibly, but when I hit the spacebar to apply the brakes, they worked!
I'm not sure if this works on all belly slides, but it was almost like the old Comet brake/skid bug.
Just an FYI.