Alternate picking USX for swing feel

Hi, I have kind of what I understand to be a bit atypical DSX compound wrist/forearm motion: https://forum.troygrady.com/t/first-magnet-footage/78684 and I am trying to train myself to use a more idiomatic to jazz USX motion. I also want to have a stronger alternate picking downstroke on downbeats style for better internal rhythm... I've been scared of focussing on alternate picking for a long time so I've done a lot of legato, which is cool and I like it, but again not so idiomatic to swing. It seems like a good opportunity to double up on this and work on a downward rest stroke at the same time, when I play in my "comfort zone" with DSX, I tend to do a lot of legato and not so steady non-alternate picking. I don't want to focus on gypsy style (yet anyway) with sweeping and lots of double downstrokes, just straight alternate picking with some legato elision in complex passages to facilitate tricky string changes (without altering the up/down pattern/pulse). I'm kind of having trouble with the bounciness of the downward rest strokes, and I'm tending to exaggerate the motion at the moment.