Miff-- I don't think the problem is a magic bullet, although I am sure there are plenty of other things being used. The main problem is that milkshakes-- which no longer have to be tubed-- can be used without any fear as long as you stay below 37. There is a huge gap between 29 (roughly the level a horse can have in his blood naturally) and the sanction level of 37 (or higher in some states). The reason for the gap is that it represents 4 standard deviations (Bob can explain), and the tracks are covering their asses legally.
