there's definitely no lineup so far for getting it 100% consistent, but recently i started using a method that seems to be working pretty well for me (~40% consistency, getting better over time):

grab the paddle, then use W and D to line up your walk with the right side of the shed. then, let go of W and just swing around the corner using D and your mouse. the benefit of doing it like this is that the height that your cursor is at on the wall barely changes, so as long as you aim properly while walking up to the corner of the shed, you should get it p consistently. TECHNICALLY it does lose like .1s or something bc you're turning the corner a little slower, but i think it's worth the amount of runs you can get with it. this should be somewhat visible in my recent nmg run.

(btw, i'd personally love it if you'd try again at installing the IGT mod, it makes it a lot easier for me to see where i'm losing time!)

1-to-1 binds (like binding scroll wheel to E) are allowed according to mods!