I can get into scooter fakies no problem, and ride for ages. However the only way I can get out is turn my wheel and do a really sketchy slider thing. I've seen people hop out, but whenever I try I just lose control and whip into my legs.
I had that same problem for so long, then I just gave them up. You could try regripping your deck that might help a little but I still couldn't get it.
Try and have your foot touching the headtube, thats how I hop out of them. They feel really wierd, but I love hopping into fsf, then riding no hands because everyones like :0
my advice would be practice just jumping while in scooter fakie. eventually when youre mid-air start pulling it back. but your problem is being comfortable getting out. its like when you first learned to get out of a regular fakie it just feels wierd.
if you dont have a problem getting into it though just practice hopping while in scooter fakie. the higher you can jump while in them the more time you'll have and easier it'll be to bring it back