I have played with this push-out early then suck in collapse loopy move for so long, the Mylan coating on my brain pathways is like 40 years old veneer on hardwood.
I really need a few good rounds at some point with this move then I can get some trust and re-Mylan for good. I have literally been losing all context half way through the downswing and jump on the ball abandoning all trust. Scores are a bit comical but I understand where we need to go (I said 'we', hah). Need to survive the lows this year. Digging deep for patience.
Kinda, but kinda the opposite too.
If you push your hands "out" early, they'll "suck in" late and fold/collapse.
If you just turn (ideally on a steeper angle with your shoulders), and lift, and fold barely… they'll be plenty wide and deep enough.
I have the M3 and the answer is no. You can hit just as wicked a slice with the slider set to "Draw" as you can hit a massive hook with it set to "Fade". (That's why I keep mine in the middle.) As others have said it's all about club head path and face angle at impact.
At the big box golf stores, if you ask nicely, the may just give you a wrench. (At least at Golf Galaxy they did for me.) They have tons of them in the back.