Thanks the path and your review!
Which parts of delta flyer navigation are hard / difficult?
1 - key / mouse control
2 - HUD is too minimalistic / non-informative
3 - find the pose for landing
4 - the Control + HUD menu lacks information
The ground problem sounds frustrating because the proximity detector automatically decreasing the velocity.
So how could you do that? Were you patient enough to leave the terrain of the imported section of Valles Marineris? :)