I made a lantern tool post during some idle forge time. It came in really useful twice. Once was for cutting a shallow dish by rotating the compound spigot (doesn't really work with a block tool holder) and the other time was to cut an acme thread for my cross feed screw with the traditional follower rest. The lantern could get to the correct place. I could have probably fabricated a more offset follower rest, but the lantern worked great. Saved me some argon. Actually, the lantern tool post was easy to set up, easy to get to the correct height with the rocker piece, and plenty rigid for the job. It was a pleasure to use. I recently got a grab box full of lathe tools and it contained nearly a full set of Armstrong tool holders along with duplicates, bits, boring bars and rockers. I'll probably nearly never use any of them, but they look nice in the box. For 99% of uses, the QCTP works just fine, and I seem to prefer it, but there's really nothing wrong with the lantern.