Typically when I ride, I keep my lower leg underneath me and just behind the girth. I keep my legs close to the horse with my feet parallel to each other and toes pointing up and forward. When I ride Savanna, my feet do not touch her when I hold my typical seat. They're below her belly, so when I do want to cue her, I have to curl my heel up under her or lift my leg to touch her side. I hope this makes sense.
Now Savanna has a lot of suspension in her movement and has a rough trot to say the least. Sitting it in takes a solid seat. If she doesn't respond to my calf pressure I will use more pressure by putting my heel on her, but I can't do that without my toes going down and my eq going down the drain. Also, we are starting some cross-rail work and when I use my leg to encourage her over the jump, it throws off my balance because I simply can't reach her barrel. It's nearly impossible for me to maintain a half-seat and squeeze with my legs simultaneously.
I have someone wanting to trade me a mare that is 2 1/2 years old that is already over 15 hands. I wouldn't start her until the fall. The person in question would be a good home for Savanna, but I'd be broken-hearted if I had to get rid of her. However if I want to compete on her, and it seems we are not a good match for that.
If I can find a way to counter this proportion problem, I will. That's why I need your advice, HF! :) Otherwise, should I take the trade on the other filly?