Something I wanna throw out there for everyone to chime in on: Is there an attachment for the arm/bar on a Kahler that allows it to function like a pop in type arm? What I mean here is that on some guitar trems (like the Floyds, Wilkensons, and those found on the Parker Fly) the bar stays put in whatever position the player leaves it even after moving it around a bit. It appears that they have some kind of "stay put" lock. The arm stays in place until they get moved by the player and then stay in whatever position the player leaves them in...they don't swing around loosely yet are not hard locked into one position. Does this make sense? On the Kahler, the bar is either loose and swinging or cranked down into a locked position. I experimented with wrapping plumbers tape on the bar's threads and that seemed to work for awhile, but the tape would, of course, wear off after a short time. I've also read that some folks drop a tremelo spring into the threaded hole before threading on the arm but that seems a bit dodgy.