looking over your code, i found some things

but the biggest problem is that the real zoom change is not handled
watching only mouse wheel is insufficient,
there are many other operations which change the zoom level. (including all the zoom mods)

as you have surely noticed LuaPlayer.zoom is not readable you can only guess the zoom level. Maybe an additional API change request in forum can help that Wube finally implements it.

2.0 broke your mod, as it was working flawlesly beforehand, i do agree Wube should add the control back and they said at one point they will, just right now focusing on more immportant matters.

ok, but how are you going to make it better if it's technical? you have the same limitations.

I wont, what I created serves my needs. Its pricise if used right, speed does not jumps around every second on certain zoom levels. It "stores memory" of last zoom used. Not bloated with other things i dont need or want.

Dont get me wrong, your work is amazing and evolution of "Progressive Running" that you made is great.