FWIW, I've experimented quite a bit with different trem spring configurations and run different ones depending on what I want from the guitar. like four heavy springs set perfectly straight with .11s on my Jazzmaster, and three springs (one straight, two angled) on my Charvel where I prefer a lighter touch. I figure as long as you can wiggle it in a way that makes you happy you're doing it right.
I tried the reverse-angled approach back in ‘78, and carried on until 1985. Wide claw, narrow trem.
But when I had a Floyd Rose fitted to my Strat, I managed to yank and twist the trem clean off the guitar.
That was when I fitted Gotoh posts, recessed the Floyd fully, shaved the block, and reverted to straight running springs.
Quick lesson in never pulling up on a Floyd’s bar, unless you have tons of spare trems laying around.
Wiggling was never an option. This was rock, not Cliff Richard and the Shadows!
But after Allan Holdsworth became known - everyone was wiggling. On everything.
I learned in ‘85 to wind the bar round and press down to raise strings. My G went up a perfect 5th!
Then the Blue Powder flexi-disc was given away in the guitar-player mag, and I discovered I was not alone. The trick then was to do it so quickly that people were sonically stunned, but anything remotely or visibly Steve Vai was considered taboo, and I grew away from the technique, since one inopportune photograph could cemented my career as Steve’s understudy wannabe - which I wasn’t.