I want to say yes, but the odds are that on shots I know will have a heavy english requirement I start off somewhat off center. That said, those circumstances are nearly always a recovery type situation. Typically I play patterns that focus on natural carom angles so any additional english is minor. No more than a tip, (11.6mm) ...generally speaking
I do change my angle of delivery but not in relationship to my body. I keep my bridge hand planted and pivot my entire upper body if required. For tiny adjustments, I'll tweak my bridge by rolling my hand (planted fingers, sliding heel) and slide my thumb up/down my finger. Keep in mind I'm an open bridge player. I know the pivoting of my entire upper body seems excessive, but it keeps my mechanics solid. I maintain 4 points of contact with my cue at all times, (bridge, chin, chest, grip).
My method is more closely related to BHE, but with the massive caveat that I don't alter my mechanics or have any horizontal wrist movement.
Nope... I don't know the amount of english that will be required until I have gotten down on the shot. I need to know the exact carom angle to determine it, and don't know that until I have fine tuned my aim line. Can't fine tune my aim line until I have my hand planted.
I'll agree that you can make a coarse approximation while standing. "Modern" doesn't necessarily equate to "good" though...

...and I believe the majority of players that make these tiny adjustments do so unwittingly and when doing so successfully for a period of time, consider it "the zone".