hi :3. And about your idea... Meh. Not only would it be difficult and tiresome to keep pressing space ****loads of times, but then technically you could fly forever. Which is not for swifty. I say a leap forwards really far (like 10 blocks) and about 12 high, then just 1 or 2 regular jumps after that.(each only 5 blocks high and not so far)
and all of a sudden... llamas....
I find the whole swiftie not being able to fly well rather silly because look at it, those wings are extremely well developed! Probably even more developed than the air dragon's which are basically hand less arms with flaps of skin on them! Unless of course, swiftie has muscle decay in his wings... Oh and my idea... it would be more like if you fall and press space, it will break your fall and then you resume falling and there would be some sort of timer which made it so that you could flap once every 2 secs or so. So in other words, swiftie would be able to glide, but not fly like his airheaded cousin the air dragon.
EDIT: PLEASE REPLY, I DON'T WANNA BE FOREVER ALONE!