I don't know about bighorn's, but buckshot's I don't like. They have soft rubber and get punctured easier than most that I have seen, but we have bad thorns like 3 to 4 inches long. Your going to get what you pay for. All I bought were cheap m/t and finally bought a good brand and I can tell the difference in wear, noise, and performance.
That is what your b-day is for. Get tires or at least money to save up for tires