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 like Steve Vai was considered taboo for me, and I quickly grew away from the technique, since one inopportune photograph could have cemented my career as Steve’s understudy wannabe - which I wasn’t.