RayB- Now that's persistence! Good job.

What I find is lacking with K stand mounting in nearly every shop I've worked in is the after initial mounting and first few swings/uses is the retightening of the mounting bolt. k stands see a lot of twisting force when deployed then retracted. A lot of loosening forces. Even with a mounting plate (typically welded/brazed under the chain stays) the k stand body tends to have some slop in it's mount/fit and still allows loosening to happen if not revisited soon after the initial mounting.

For fun and giggles here's what I did to locate and trap a k stand under my self made 3 speed frame. The studs on the stand's top sides are finishing nails. The top sides have had slight notches filed in, to best position the stand's rotational alignment (with the stay) and to snug the stand in place with no chance of a slight twisting when the stand is swung up. Andy