Originally Posted by Katze
first get rid of your stirrups, then let your legs hang straight down, sit deep in your saddle until your pelvic area, lower back are "engaged" (you should be feeling your core). Then drop your heels down. Get comfortable at the walk in this position once you have mastered the walk try the sitting then posting trot (yes w/o stirrups lol) don't point your toes out. Use your back to guide your horse vs your knees.
I went riding tonight again to try and work on this, and had a friend come with me to help me out. She said that I SHOULD be pointing my toes out a little more, so was she wrong? I was having trouble keeping my mare cantering around the corner so she had me go in my two point, keep a firm contact with my lower leg, point my toes kind of out and heels down, and then she cantered around the ring just fine after that.
I should definitely start working without stirrups, that's probably the best way to start getting in shape and breaking my habit of perching on the stirrup irons