My SO had gotten a Voltaire about a year ago and only had if for 6 months. He rides multiple horses and the rep had come out and let him test ride in a brand new one and sold it to him on the spot. He loved it but after about a month felt like it was slipping all the time, all over the place, on every horse he rode. I tried it and also felt like it was slipping. Rep came out agreed it was slipping but because of the pad and girths he used. He said to use a Mattes pad and he needed a Voltaire leather girth because the fleece girths were the issue. Multiple girths later saddle still slipping. So we sold it and went back to Butet.
It might have been that saddle but many people in our area who had sponsorships were dropping Voltaire for similar reasons. We loved the saddle a lot and loved the quality but couldn’t get past the slipping.