I find it very suspicious that BOTH horses have filling In ALL FOUR =
legs. It certainly won't hurt to back off on your training regime, =
however I'd keep an open mind about exploring other problems. I have had =
stocking up due to supplements, feeds and medications before, also had a =
leased mare with a thyroid problem that stocked up. One other thing I =
would take a strong look at, would be your post-exercise program. What =
do you do with the mares after a ride?