Sort of yes. To say the contact point is a little misleading though because the contact point for non-full contacts are always the intersecting line from the pocket to the object ball LESS the width of the cue ball. Sorry, a rather fuzzy explanation, but here is another take in practical terms:
What I do is....
1. draw line from pocket to object ball and remember point on table surface behind the object ball. For example, do what Mathew Stevens sometimes does, getting behind the OB and kneeling down. Don't know what he visualizes but you get the gist.
2. approach and walk into the intersecting angle that the cue ball has to this contact point you visualize from step 1. Don't forget, you need to adjust for cue ball with and consider which "edge" of the cue ball is meant to hit this visualized point.
If you do it right, you will instantly see the potting angle when down on the cue ball, and can even go a step further if you like and add a ghost ball (but it's not necessary). With time, you may also see/feel a line from your hand, through your tip, through the cue ball, and intersecting near the visualized line.
Doing the two above gives me confidence when feathering and I have no problem making the ball at all because my body is in line, cue is in line, and i have something to aim at. It's working splendidly for me for most pots.
However, it doesn't work for every concievable shot in the game (imagine very close or very far from object ball) but for 90% of shots, it's super. For long shots, I fall back to the "does it feel right" theory of potting because you can't really see a contact point on the table.
Hope that helps
