What's my name? I'm primarily interested in durability, and so far, HT2 is superior on both. Maintenance because, loosen two allen screws and the end cap and the crank comes right out, and the same thing to adjust the preload. Longevity because it can adjust the preload! THAT is my primary fault with internal cartridges, you cannot readjust the preload once it loosens up a bit; The bearings inside the cartridge are still fine, but slack causes faster wear of both bearings and seals.