NOE is a blast! We've been so low as to have raise a bit to get over rice paddy dies - this at 85/90 knots. This was while I was flying door gunner.
Later when I became one of the guys they were dumping in the middle of nowhere I sat in the door with my feet on the skids as i was always one of the first out of the A/C - which usually happened at what I estimated to be 6' off the ground as we were coming in. This cleared the way for the rest of the guys to have a clear exit on touch down. It also gave us 4 guys (2 out each door) on the ground for suppresive fire if it was a hot LZ.
Sarge