Cant be that one, it's misleadingly easy compared to how hard it looks..
Fakie tre is weird because the way it rotates allows you to pop RIGHT before the manny pad without hitting the pad before your boards popped enough, this basically takes the gap element completely away which is huge especially compared to something like a fakie heel fakie manny where just getting onto the pad feels like a massive gap, anytime you don't try to gap far the board just hits the edge on the way up.
Getting out is the same thing really, for some reason the fakie tre always clears the gap getting out but if you try a fakie manny fakie heel or flip out it just feels like there's such a large gap to clear..
I think it's the more advanced version of people being able to 180 up a higher ledge then they can ollie.
I really think the hardest good looking trick would be a fakie heelflip fakie manny heelflip.. any footage of this being done?
You could argue a fakie inward heel nose manny fakie heelflip out as well but while it's harder to flip you would be able to pop closer but still not as close as a fakie tre flip.
Any other argument would require being some type of switch manual such as a switch inward heel manual which you also have to pop early creating a massive gap to get on.. there isn't really a gap issue out of switch manuals tho, so you would have to do something really hard out.. So i'll say a switch inward heel manual switch bs heelflip out.
You could also argue some type of 360 manual but it would have to be PROPER
tdlr
the hardest COOL tricks i want to see are.
fakie heel fakie manny fakie heel
fakie inward heel fakie manny fakie heel
switch inward heel manny switch bs heel out
switch bs 360 manual
If anyone has footage of them let me see yo