I've seen Butler guys using the live vac hose reel with about a hundred feet of coiled hose to go thru before the waste tank! I've seen Kurt Bolden fret about the tiny amount of suction loss from a short hose on the Hydro X opposed to the 2" vac hose straight to the unit.
I've never used a Butler stock. We use 2.5" vac hose from the tank, Parflex pressure hose, tried Butler wands but didn't like them so we use others, too. The unit can be a monster but stock is not monstrous! But we'll continue to buy them if they can get a handle on the price.
The bigger blower and high ... totally adjustable heat is nice. The rest of it isn't that big a deal...except the big water tank... because when you need water, you got water.
I don't like live reels hot or vac, but it comes with the big waste tank...which Saigerized by-passes the vac with the Y.
Just a reliable machine. A throw back really...very little tech. Not much that Mark can't fix next time he's in Florida... lol.