I posted something similar about this today also haha. If I’m doing the 2NPS, I’m personally gonna do
U D D U then position shift up one box D U UD
e|-------------- 5 8
B| —5 8
Edit: I’m mainly a downward pickslanter so when I do slant upwards, it feels pretty severe but it does work better. But I’ve been using a small mirror on my desk (that I usually use to prevent looking down at my guitar for long practice sessions) to double check my upward slant angle, my thinking is that since it feels solid on the way down, I want around the same angle for the upward slant.
I’m not sure why I don’t see that many people doing this technique. The mindset makes perfect sense to me and seems simpler and more flexible than breaking up the scale with a repeating “3NPS followed by a single note” to get around the pentatonic scale. Maybe that’s just me though. The TWPS does seem to be just a little bit difficult to really reign in imo, I would think it would be well worth it though
Edit edit: I did a little bit of it at the end of this video I posted on the feedback forum