Well...so far, I've been just bringing her back down and trying again. I know that keeping them flexed and on a circle is supposed to help them pick it up correctly, so I've been working with her on it a little, but I really haven't made it far! I'm going to take some riding lessons so that somebody else will be watching her legs and helping me catch it quicker...I'll make sure to post anything that seems to make a big difference though when/if I find it! I think my mare's issue is that she's always been (and still is) primarily a trail horse, so she's not usually asked to canter on a circle. And she trots so fast that when I ask for more than a trot, I usually do mean gallop....on the trail anyway. If I can get her to trans calmer, and not so rushed, that may help too...I'll try.