While having efficient dives and landing placements is important, I find that any improvements on the order of ~0.5s will be made at the start of the level, where there are awkward hills. I've seen some runs where players are able to completely clear the first big hill by an ultra-precise first dive, which I think may be a bigger time save...

This run should be moved to the glitched category right?

I have also had this glitch running 1-1

This is crazy. Bravo!

Flight school 100% is free for grabs