Next step after learning the nail delay

What comes after the nail delay?
Hi!
I started playing not so long ago but my (counter) nail delay is pretty good already. So what should be the next trick to learn? I thought of the under the leg nail delay hold. Any comments or recommendations?
Thanks in advance, Jan

The 360+ : in depth…

I’d really like to know some specifics about spins. What is the optimal foot movement for a quick and balanced spin? As it’s winter in Russia where i am from, i cant practice outdoors, and my indoor facility is pretty limited in height, so i cant catch a 720 without really quick movement. And anyway im having problems with maintaining position after two spins..

Any tips? I dont really have any projammers to ask around here 🙂