After reading up in this a couple weeks ago, I went with what seems to be the simplest solution. It's a small steel plate with a hole in it that attaches to the center stand axle clamp. It limits the rotation of the stand. Took 10 minutes to cut from a 1-inch steel strip. Seems to work fine so far. It's also almost invisible. I need to trim it a little to "tune" it but so far it's getting job done. This is a 76F fame so I can't guarantee it works with a 77.
Aaron