Thanks Lavinia. We are on the same page as to what I have tried.

Today, for kicks...(Hmmm) I found Scotty's old Gloves, and found probably a 6mm pad (I'm not good with mm, probably 1/4 inch) that I inserted, and thought I would give it a try. Way cooler than Clouds or anything else I have. He accepted them well, and they still fit with the pads inserted. But I left them on while doing chores and could see that he was just not happy or walking well. After watching him struggle, I switched him back to Clouds with Soft Ride inserts/pads and a sponge on his left to keep it from twisting :(