front 180 to fakie Manny is way more trouble than it's worth.
It took me aeons to figure those out but it was well worth the trouble, they feel sooo good.
It's one of those tricks you have to commit to 110%, it won't just happen like a nollie tailslide to fakie or even a front 180 fakie nosemanny. Put your front foot
slightly hanging over the toe side of the board (kinda like in between your placement for a front 180 and a frontside heelflip). Back foot like for a normal frontside 180. Try to do the full 180 in the air before landing.
Yes, Daewon, Crockett and everybody who does that trick seem to do like a 150 degree ollie and slide into the fakie wheelie, this is what's gonna happen but it won't work if you try to do it like that, you'll lose your balance. Once you've landed, pretend your back foot leg is made of steel and won't move, hold that wheelie like your life depends on it.
One last thing that helped me at first (not sure why to be honest) was approaching the pad at a slight angle (like you would for a backside slappy grind).
Frontside nollie 180 to fakie Manny is bullshit too.
Your shoulders should have pretty much done the 180 as your nose hits the ground when you pop the nollie, then your hips and legs will follow and you'll be able to keep your balance once you land on the pad.
Crooked pop out in the middle.
Torque the crooks making it close to a noseslide, sit on it then pretend you are light as a feather when you pop that nollie out.
Hope this will help! Sorry if I didn't word that very well, I'm knackered.