Some tricks come to me quickly; I find a beginning and then the rest just falls into place with minimal effort. However, some tricks have required a lot of effort and time to get to where I want them to be.
Imaginary Axis has a fairly interesting history; it falls somewhere in between those two. Much of the trick just made itself up, but it was just missing something... for months. Finally, randomly, when I happened to be hanging out with some friends (who have since gotten into throwing), those missing pieces showed themselves and the trick
The part of the trick where you let the slack fall limp, swing the yoyo around, and finally land the yoyo in the slack is a little bit tricky to get smooth and consistent. Just keep working at it and try to find the rhythm involved.
Once again, this trick is one with quite a bit of stylistic freedom, so just perform it how you like.