caveseeker7
Contributor
For years Zeagle has been making Manta Wings, for use with shingles, even before they started selling their own. They're for doubles and available in 50lbs. and 65lbs., for single they (will) have a 34lbs. (after DEMA, I assume).SimonN once bubbled...
But, the Zeagle wing has to be secured to the backplate in a weird and complicated way so will not work with other backplates.
Their backplates come in ss and titanium, and will fit all their bc bladders, too. So you can use anything from their 34lbs. to 85lbs., plus just about anyone else's bolt on. Continious webbing harness or one with quick-release buckles.
The choice is yours (and should be

But you're certainly right about the stability issue of a bp/w vs. soft bc.
The ladder are no match no matter how many tanks you use.