Ok, I don't remember the stage-I think it was Stage 19 or 20 and there was a wheel change. What I saw caused me to think. I saw the mechanic with the sticky wrap ace bandage type around his arm where blood would normally be drawn. I was curious to know if the mechanic had recently visited the Red Cross to donate or what? Curious also if perhaps the teams use the mechanics as "guinea pigs" with the doping products? It seems like most of the mechs are cycling enthusiasts also (hence the job) and most likely are in decent riding condition. Thoughts?