Yep, a lot of us have been preaching this here for a long long time. I have to get a phelbotomy done once every freaking month to keep mine down now. Dont think its going to make you bullet proof though. Nothing can do that, but it will decrease your chances of a clot and keep the numbers down some. THe worst culptrit IMO for high hematocrit is staying on all the time, even if its just a low dose test.
So last year I had about 10 or 11 phlebotomies done. They want my hemoglobin to be about 15, and if its over that when I go in then they will do the phelbotomy. Last year it was just 1 or 2 times that my hemoglobin was 15 or less. Most of the time it seems like the blood letting each month keeps it at about 16-16.8, so its enough to keep it from going any higher. SOmetimes it will creep down lower which is good.
If youre going to be on all the time then youre going to need frequent phelbotomies if you have this issue. Some guys dont have the problem as much as others, its individual.