Check out this U.S. Tubes slide from The Cave Smoke Shop
It doesn’t have the grinding on the joint.
It was demonstrated that it actually makes better contact (?), and pending test results from a friend who bought it may not get stuck with oil as quickly.
Looks pretty awesome, I think..
Also check out this piece called “The Reclaimer” from Up In Smoke in San Jose (I think they also had them at the cave)
It catches your reclaim and is designed to switch onto a bong or be used as a pipe. Score!
Also if you look below it they have knock-offs of Healthstones!! Pure white stones, crazy right?