The Classic Pass is a move with a high degree of utility.
The pass is so versitile and I use it in alot of routines.
The original purpose of the pass is to reverse a cut. To use it as a control or color change is like using a shotgun to swat a fly. It works, but it isn't the best method.
It is true that you have a wave of younger magicians mostly that just show off their pass for the sake of performing the move(I myself have been guilty of this)
Yeah, that. I suspect that younger magicians practice the pass so much, they need to come up for uses for it.
To perfect it though, should I try to minimize the motion of the wrist? Was trying to reach a sort of Akira's pass but ofcourse im still practicing.
A couple of thoughts. First, if you insist on using the pass as a single card control, the replacement process (placing the card on top of a packet) is typically viewed as suspicious. I've seen people try to stick a card elsewhere (like in the middle of the lower packet) when that replacement process is used. Try to learn to do the pass having the card replaced into a spread. Another alternative is to dribble the cards and have the spectator say stop where they want to drop the card. This gives them more control and makes it less suspicious.
The cover for the pass should be a squaring motion. Try covering it with the right hand squaring the cards and the left hand stable. That would eliminate the "shake." If you can in the process of squaring the deck turn your body from right to left, the squaring motion and the motion of your body will provide sufficient cover. As Tamaritz says, the bigger motion covers the smaller motions.
Finally, practice while talking to your audience. This goes for the pass and any other sleight. Most magicians don't realize that talking is the best cover for a sleight.
I think the upward tilting motion is a subtlety introduced by Dr. Jacob Daley or maybe Derek Dingle to make the classic pass less perceptible. The pass is not meant to be invisible only imperceptible. The Classic Pass is a move with a high degree of utility, so I doubt that once learned well, it will not be of any use. Turn the deck face up and right off the bat you already have a color change. It is true that you have a wave of younger magicians mostly that just show off their pass for the sake of performing the move(I myself have been guilty of this). And granted there are people on forums saying that The Expert at the Card Table (which contains the classic pass or two-handed shift) possesses useless moves, and that you can get the same results by "banging your head on a desk". I don't find this to be the case, because upon flipping open the book to a random page you will find a bunch of moves that are still in use by the modern day conjurors. Including the Classic Pass.
