I'm not good at 360 flips so I'm not one to chime in really but when I do them, contrary to what cheetah and others are saying, I definitely still flick my front foot similar to a kickflip, although further back in the board. It is such a satisfying trick. I'm tryna get better at them.
I was having a trexistentialist crisis once, then my friend said "forget the scoop, just flick like a hard varial". It didn't sound right and I thought I'd be doing a stinking double varial or something.
Kept my back foot slightly by the concave, leaning off the edge. Front foot is slightly pointed and at an angle, lower down for where I kickflip.
5 or so goes, boom got my first proper tre bomb.
Obviously different techniques work for different people, but the whole scoop first doesn't work in my head. I reckon it is partly down to my dyspraxia and not understanding angles.
It's like how I suck at axle stalls. I need to be less shy when skating mini and generally sucking at it and have a proper sesh practising them.