Grigory Furseev socked the laws of physics last season when his totally legitamate cork 180 went viral.
This year, Henrik Harlaut and a few others did some of the first few flatspin/rodeo 180s.
As an avid trampoliner, I am able to do flat 1s (not cork 1s (legitamately)) and double flat 7s. So a little while ago I thought of combining the 2. The trick would be flat 3 to flat 1. A double flatspin 5. I've tried the trick and personnly cannot do it (yet), but I think this is on the horizon on the tramp and on the hill.
If you think this has been done and or have a video bless us all and cough it up but if not, I'm handing the task of the double 540 onto the great people of NS