Curious, I get the drawback with the braid and the Cannon Auto Stop but,
Why didn't you like Big Jon then? Certainly can run braids on those, I do!!.........
And the Auto Stop on Big Jon is a adjustable bead just like Scotty, can set the bead wherever you like, use it on braid, SS wire, whatever.
Big Jon, un-like Scotty are direct drive motor driven, not toothed rubber belt driven that break/wear out and, Big Jon's don't require you to hang on to a hand brake all the while when getting down to depth each time.
If you want to go down fast to 2, 3, 4, 500' in a free spool mode and hang on to a handle to whole while? On a Big Jon, you'd just have to hand loosen the drag knob, she'll rocket to the bottom or wherever you stop it at when you tighten the drag back up, but why? Seems simpler (albeit slower then free spooling) and way less overhead time to just hit a rocker switch into the down position for an electrical payout.
Scotty's also seem too big and bulky, like BIG ugly black plastic boxes stuck to your boat. Nothing personal but.....
I see some Scotty's on boats around here and messed around with a few but, don't get why there's any hype about them I guess. I just don't find any raving performance/technical gains or even enviro/mechanical advantages with Scotty.