I always pushed out to a jump shot back in the early 90s, got it back and drilled it in.
Practice jumping over the edge or over a cue laying on the table, then more and more of the OB and before you know it you'll be jumping a full ball.
What's funny is i can hear "Earl" (Joe Rogan) talking about jumping with a Meucci and that's what I played with back then lol
I would stack some quarters on the table. You can jump a few quarters with an almost level cue bridging on the rail. I would just add quarters until I was confident, then a cube of chalk, then stack a couple of cubes. Best thing is to work into it slowly. Don't start out trying to jump a full ball a few inches away.
The real point of the new chalks is that they are cleaner. Primary benefit being fewer skids/kicks. Secondary benefits are cleaner cloth, hands and cues.
Every thing else is marketing BS, IMO. But I use it for the cleanliness.