Hmm, so these magnets are 12 lb pull force. Has that been pretty reasonable, or would more or less pull force make sense? I've been pondering doing something like this, but I keep looking at those magnets and thinking they seem awfully bulky. Been pondering Neodymium magnets, because you can get some pretty small magnets that have good pull forces. Course, then I'd have to figure out where to put the setup, since my last plane I built on the kitchen island. (Needless to say, my wife was a BIG fan of that.) Although a smaller setup similar to what I used might let me build on the island, and move it out of the way as necessary.