Cut pieces from an old innertube and use them to pad the chainstay and provide friction. Use LocTite blue to keep the bolt from loosening. If you really like the stand, like I do on my tandem and triplet, have a kickstand plate brazed onto your (steel) frame and all your worries go away. Note that some older Cannondale touring bikes and possibly other brands also have OEM kickstand plates.

I also love having a built-in workstand. Makes changing a rear flat tire so much easier, for example.