Dutch,
I have the .60 and have never flown the .40 size but there is about a half dozen of them (the .40) at our field. I love the .60, and the guys who have flown it that own the .40 like it as well. Apparently it handles a bit differently, but I have still have mine set up to be slightly more docile right now. They do however say that with the right setting up, it would be great. I have the Saito 100 on mine and it flies awesome. Vertical is straight up, non stop with a 14x6 prop. I'd offer to send you some video, but my camcorder happens to be on vacation with friends for the next week or so. Rumor has it that someone at our club bought the twist 150... can't wait to see that thing in the air. If you have any questions, don't hesitate to contact me.

-Jay K.