Well, we surely appreciate this thread here, Ed. It really provokes thinking and ideas about the slugs and what can be done to help with accuracy.

It's also a big eye-opener on the slower burning powder use in our shotguns, rifled and smooth, with slugs or balls.

I'm not surprised over the tilting or collapsing of the long cushion wads, Some, by design, of course, would be worse at this than others. I've usually only loaded with harder wad columns, built up without cushions.