agreed cause i can caliper at 3 and have lower when i was a tiny runt. caliper is off, ive been weighed in water, i was 6.5 a few weeks ago at loyola for 40 bucks. it is plus or minus 3%. t.o said he was 8-9% in SI when they gave him best body of an athlete award. so who knows. in chi town we were always told that mj was 3% year round, the only athlete ever yada yada. i'd say a pro fighter like wink really is close to 4-5% on fight night especially if they are coming down in weight. i think wink and roy jones jr. and floyd mayweather get down to the lowest. if you look at them there is not an ounce of fat. a bit less bf than t.o but they are not as jacked. i'd say pro fighter 5-6, pro WR or DB is prolly 8-10%. who knows though. macro what do you think about biotest on the link t matt gave, a lot of fighters do love it