Is it keeping your heel down via stretching your calf or is it keeping your heel down and your stirrup is slipping around?
Either of them, go into 2-point. ride your horse walk and then trot in two point. Use your WHOLE leg to ask for bend, never ever ever your heel.
By using your heel, you curl up your leg, sacrifice your seat, get out of balance which throws your horse out of balance, and it's not a nice quiet aid, it's a sharper uncalled for aid.
Use your leg. It may be hard, but once you can do your riding w/t in two point (I wouldn't do canter but you may need to!) then you know which part of your leg moves your horse and gives aids. And you'll stretch down and relax into your seat more.
"Strength is the ability to use a muscle without tension"
Last edited by Skyseternalangel; 01-27-2012 at 04:44 PM.