Yeah, controller helps since you're only using your index fingers and thumbs. With some in game macro rigging you can even squeeze in more than 4 gcd rotations into just the face buttons without sacrificing the ability to queue them. This is me doing the old drg rotation without including the ogcds with my thumb held on the R trigger and the skills/setbar automatically changing based on what I pressed. Could still apply to non combo classes, I think.