Mt Whitney Zone Forums General Discussion How long does acclimation to high altitude "last"?

I bet blood doping would make acclimation easy.Packing in all those red blood cells and thus the increased O2. Never heard of hikers or climbers doing it but since it is not illegal why not? It obviously works for Bicyclists. Ask all the Tour de France winners including Armstrong. I wonder if Everest climbers do it? Even though I am sure it is rather expensive,it would be a drop in the bucket for those who pay 60-$100K to summit Everest.