I wonder whether this is a function of what work you're doing?

I have cut exactly one part with the fogbuster - but it was a 2D aluminium part with some deep grooves and 1mm step down. FB worked good for this - air blew the chips out of the grooves and a tiny blast of IPA gave enough cooling and lubrication to improve the finish. It was all getting quite gummy with a dreadful burr and horrible finish until I turned the IPA on. This is on a little mill.

But if I was hogging hard steel or titanium like a boss on a huge spindle I might wish for a big hose and pump and industrial levels of coolant. Physics maybe? I had a big 'duh' moment when I saw NYCCNC doing calcs that included spindle power. Yeah, of course it matters.

Alan