in front 5s and back 3s the last 180 of the spin your front is facing towards the landing so its easier to spot it.
Yup, front 3s and back 5s have blind landings. You face uphill, or behind you upon landing. Once you land you turn your torso around to face downhill. I find that turning prematurely makes me over-rotate and spin once more upon landing. If I catch an edge in doing so it's similar to what snow-wolf posted.