I still wasn't really content with the barefoot because long rides are not possible without hurting Beau's back a bit, so....
I had this guy from the netherlands come over:
www.vaquero.nl
and he makes hand made western saddles, so he came to fit and write everything down, it's going to be very expensive (over 2500€) but it is supposed to be fantastic...
It will be a hand made rawhide-wooden tree with a A fork and a cheyenne cantle, with padding in the seat and a big horn, in oiled leather with silver cocho's and just a fine line in the leather, not too much fancy stuff because of the price, the girth-rings are put in a separate piece of leather and there will be another piece over it to protect the stirrups.
I have to wait for about 10 weeks for the result, I hope it will be the solution to everything...