I’ve been struggling with my USX since I found out about this website (before that I had no idea what USX was and that it even mattered ). My main motion has always been wrist and elbow (dsx) but have always wanted to learn USX to help my rhythm playing (riffs like crazy train for example). For the past 10 years I’ve been playing with the guitar on my left leg, classical position, and it’s great when it comes to fret hand access and it suits my wrist and elbow playing. However…my forearm USX technique has never felt as good as my wrist DSX and I could never figure out why. Today I was playing around trying different things and I noticed that if I put my guitar on my right leg my forearm USX suddenly feels quite natural. It feels like I don’t have to fight the guitar to make my upstrokes escape, it happens without me thinking.
I can’t understand why I haven’t tried this before, I feel kinda stupid but at the same time happy :).