With the new ability to loop after a successful run, I have found a way of skipping some waves. You can see it in action here

If you kill the enemies as they spawn quick enough, the game seems to get confused and will sometimes skip waves. I have found a lot of success using orbs but I can't see why it wouldn't work with other builds.

EDIT - Please ignore the pb showing in the corner, I must have messed up my splits somewhere because my pb is not that good.