RE: U Can Do 3D
It was awesome flying here in NJ yesterday, and today is more of the same. Sounds like you are progressing well. Slowly bringing up the throttle or burping the throttle a couple of times are good ways to transition to a hover from a harrier without gaining much altitude. Spoilerons fight the transition but I use 50% to harrier the UCD. Inverted harriers are MUCH easier than upright on EVERY plane I've flown, once you have the skills. Inverted harriers have virtually no wing rock and transitioning to a hover is MUCH easier, just push the elevator and slowly increase the throttle. Looks really cool and is actually much easier to do once you can harrier inverted.
I'm taking my 50cc vision out tonight, if it doesn't rain. Winds look light.
Have fun.