I finally figured it out for my swing.
A few friends have tried it with some success.
In my case, I do two things this year I didn't do when I consistently sliced/faded all my golfing life.
1. Left wrist flatter by very weak left grip
2. Right elbow in close to body thruout swing
I now hit over 270 (with sldr with draw biase) fairly often and almost never fade.
Btw, same for all my irons and I consistently hit greens from up to 170 yds (need some improvement with 5 iron to be consistent from 180-190 yds).
I am 69 years old and loving golf again.
I would enjoy hearing if these techniques work for you.