Thanks for the comments Steven.
Yeah, I used Ed's fiberglass poles and his hipbelt. After trying a few failed designs myself, his are exactly what I wanted! Since I don't ski and only snowshoe, I requested the poles at a 5' length which I feel work very well for more stability & control over a longer pole length.
Yes, I do have to reach to the inside of the pulk, just under the cover to adjust the fins, but it is quite simple to do. Just undo one snap, twist the wing nut and it's done! (Honestly, I don't adjust them too many times over the course of a trip, though) They REALLY work well at mitigating side-slippage when traversing slopes!