1 and 3 are lol
so 2 will be adressed first
some delays can be mca'd out of,
/forum/sdgo-videos-s...ust-watch.html
^ thats MCA (if you dont already know)
other delays you're just stuck with, move whille you use them or something
for 1 and 3~ its also MCA
you just have to get used to adjusting your height to match their height, but do something like while boosting forward, press space a little bit (or alot depending on their height relative to yours) while circling around
personally, as a rock player, i dont recomend doing this, just use melee dash for the initial ascent unless they're not very far off the ground, otherwise, alot of boost is wasted D: if i'm trying to conserve boost, i sometimes just camp right behind and under the paper or w/e in the air until they start to descend, then i boost up a little bit and start meleeing 8D
the best way to melee something in the air is basically mca climb, and practice lol
EDIT: fixed typo that caused misunderstanding (days -> delays)