How do you get a Suspension to hook, when the track surface is marginal at best

SS spring were proven to work with the pinion snubber years ago.
Personally if I were you I'd put a new set of super stock Springs in it put the snubber in it preload it just a quarter of an inch against the floor and go racing.

Then if you want to change tire size or gear size to go quarter mile change it.
My thinking on the super stock Springs is it if you don't run the pinion snubber they're going to wind up just like the ones you've got only sooner.