I do have a good saddle pad. Everyone that I've shown the saddle has said it was a lot better made than they thought it would be. It should last a couple of years at least. Dancer hasn't had any soreness, but then, I don't ride her for very long at a time. We are neither one of us up to a long ride, yet.
What kind of saddle pad do you have? The pads that Hilason sell for their treeless saddles aren't very good, especially for a heavy rider. They have two types, with foam or gell. The foam pads have panels that are oddly shaped, aren't long enough, the foam is thin, and the foam isn't very long lasting. My first Skito pad is 8 years old and still going strong
. Gel is not a good choice for treeless saddles. It isn't a truly shock absorbing material. Under pressure points, it simply moves out of the way. It also traps heat against the horse, making their backs very hot.
I'm glad the saddle seems decent. That seems to be the case with Hilason. Their saddles are either "okay" and last a year or three, or they are total junk and fall apart on the first ride. Hopefully yours hangs in there and lasts until you can save up for a better brand
. If you keep your eyes open, you can find Barefoot, Blackforest, and Torsion saddles for good deals used. I got my Blackforest, nearly brand new, with leathers and irons for $300, shipping included.