Oh man I remember this article! So if I’m reading correct, place to start, would be a steep angle on a slide? I have like 10 junk slides I can play around with, and possibly enlarging the top hole on the brass tube a little to try and make the bottom end as lean as I can and the top as far as I can.
I’m not sure if the steepness of the angle plays directly into how lean the bottom gets but I can try, maybe I’ll make 3 or so and then test them all with different angles of steepness, most of mine are the flat bottom ones. I have a few stock angle ones with no cut out. Hmmmmmm it seems like I’m my peak I’ll need around a 72 or 73 main. So a steeper angle creating lower pressure and thus less suction out the tube might help. I also might try just running no air filter to help lean it. Or like remove the mesh or the pod box thing.
So many things to try