I also have blue splint boots that I have been really happy with. They are
made of equilon by Ulster (I think that's right) and are great - absolutely
no chafing. They also come in the shorter ankle boots. I got them from
Janet Pucci of the Australian Connection catalogue. I don't have her number
but she's in Granite Bay in the 916 area code. They also make a great
saddle pad - wicks away the sweat.
Good luck!
Carol