around the world is like a one handed sun isnt it?
Here is Valerie doing one in slomo.
The key to success is the start. With the top hanging down, the crown of the top should point to about 7:30 O'clock (noon is away from you) Don't put much tension on the string as the top goes through the upper arc. Lots of spin helps.
Suns look impossible to me. (but so did Merry Go Round a few years ago)