Tim Noakes says.....

Dr Tim Noakes has this to say about the Murray Orthoped saddle.

http://www.youtube.com/watch?v=X53EKOHoNBk

There's not really much more to say.

Sheepskin saddle covers

No, I don't make those, but there could be merit in covering a sub-standard saddle with sheepskin once it has already rubbed you raw. Might help.

Getting a decent saddle in the first place would enable both you and the sheep to keep your respective skins.