I was wondering if you guys had any tips for maintaining a better seat while loping, I know people usually say to just relax your hips, heels down, act like it's a swing, etc.
But it just doesn't work for me..my horse is so dang bouncy!
I think you got your cause and effect backwards.
If I understand you correctly you say: Relaxing my hips/etc/etc does not work because my horse is so dang bouncy.
What's really happening is: My horse feels so dang bouncy because I haven't learned how to relax my hips, core muscles, shoulders, thighs, knees, and ankles.
Yep, all of that needs to be relaxed.
And western or english, everyone should have the two point seat (not really a seat since your butt is completely off the saddle) in their toolbox.
When riding cross country at a fast canter, I sometimes can't stay with my mare's motion and start to get slapped by the cantle. So rather than slow her down, I'll just lean a tiny bit fwd, push down on my feet, and get solid contact between my calves and her sides. My butt comes completely off the saddle and off we go. Both of us are a lot more comfortable.