I'm genuinely looking for discussion, not an argument, and appreciate this discussion.That's a misperception. As I've said to you before, that kind of cue movement is impossible without sliding your bridge hand forward (and it wouldn't give the result you imagine anyway).
A swoop stroke moves the tip in an arc (the "swoop") so that it arrives at the CB going in the C-E direction, just like a straight angled stroke would.
pj
chgo
Regarding a bridge hand slide, to double-check, following our prior discussion I went to a table and hit shots by presetting the diagonal cue with wrist pronation (or supination) and then stroked shots straight forward. I observed the english on the table in the correct preset amounts. My bridge remained stable.
On a non-preset swoop, I have room in my loop and a half-tip of english and a soft stroke doesn't ruin the bridge hand. Although you can see my bridge hand opening and moving on the big strokes on the video, sure, but after CB contact and again, the shape is fine.
Regarding misperception, I can certainly see and feel an aim difference on the table. And students who overcut from english deflection enough to miss a faraway OB entirely like how they can score the same ball with a swoop. I don't think it's a misperception for me and for them both. I've had a lot of students shoot both ways in person.