I found that with some chords, (like D, E & G for example), I was already kind of doing air changes without knowing it, so the change over has been fairly easy.
Yet for others, like the C chord for example, I really found it hard to adjust the way I was putting down the chord ie: 1st finger, 2nd finger, 3rd finger.
What I've started doing, & it really seems to be helping my progress, is to put the chord down in the reverse order (eg: 3rd finger, 2nd finger, 1st finger).
Anybody else tried this?
I guess somewhere between doing it the 1, 2, 3 way & the 3, 2, 1 way is putting all the fingers down at once.
Anyway, seems to be working for me so far.

Cheers,
Matt