I’m looking at the Harvey Alpha table saws. Specifically the HW110TC-36, 3hp, worm gear trunion; or the HW110S-36, 4 hp, dovetail trunion. They both list as belt drive (3hp single grooved belt, 4 hp triple v belts) but the images look like the 3hp may be direct drive? Price difference is negligible (couple hundred bucks) so the question is, is there any advantage or disadvantage to the dovetail system? Other than lift mechanism and motor they are the same saw.