I think its partially important what unit you have:with clutch or without ,misjudging landing target by cross wind or different unexpected trouble, and you have landing with dead engine too early for example in hedge or trees
I kill the engine only when I want to land, my legs touch the ground
just sample landing with engine off look please at 5:40 this film ,he had a chance to reach landing field,but wind make surprise http://tinyurl.com/a9nod6m its too late to start engine again ,and land in very rough bumps