I ride English and I`m a fairly good and balanced rider with a strong leg position.
The second Im in a western saddle I become extremely unbalanced. If I try to sit the lope or jog, I have to hold onto the horn to keep me in the saddle, and often feel im being launched out of the seat. I've shortened the stirrups as much as they will go. My leg does not feel secure at all although the stirrups are already to short for a western seat I`m told.