I rode again on both saddles this morning making adjustments as you all suggested. Using the Cheyenne leathers on the Torsion per PH, longer stirrups & looser girth per Saddlebag, and adjusting placement per Flytobecat (although I went more forward, not back).
I rode in the Torsion again first, with the leathers & stirrups from the Barefoot. I was pleased to find it really easy to change the leathers because I could take them both off without detaching the leathers from the holder! (see pic below) I was really excited about this feature of the Barefoot saddle, but later found out the problem with this!!
Anyway, I placed the leathers directly over the existing rings on the Torsion. I thought this would make the saddle horribly lumpy, but the super cusion Torsion seat prevented me from feeling them at all!
I set the Torsion back farther on Chivas, where it slid to after my ride the other day. I could once again feel every move of Chivas's back while feeling like I was sitting on a very soft pillow. The leathers made a huge difference, and I was much more comfortable being in a Dressage position again. To me, the saddle felt wonderful.
Chivas was much happier too, no bit chomping at all today with the Torsion. He was moving easy, but I could tell my boney seatbones were bothering him
so I sat up more on my crotch to give him relief. He also was going kind of slow and plodding with his head lowered. I got the feeling that he felt weighted down.
He had no problem moving his shoulders, and was willing to rack & canter, but did not go very fast and slowed up quickly. I rode the same 1 mile as Saturday, but more walking cause I felt I was hurting him.
We met up with some wasps near the end, and he perked up a bit, but we got away with out any landing or stinging so he was very willing to walk the rest of the way.
The saddle did slip a little when I got on, even though I used a mounting block. When I dismounted, I kept my foot in the stirrup too long and the whole saddle twisted to the side!
So much for a loose girth
Overall, I liked the Torsion, especially for me, but I wouldn't want to use it for long distance or hard riding without a more supportive pad.
1st picture before ride, second after ride: