Question about the pros?

Tell me if you've ever noticed this when watching pros play televised matches. When taking their practice strokes for a draw shot, they don't place their cue tip anywhere near where they actually end up hitting the cue ball. They aim like they're going to miscue and scoop under the ball but when they actually stroke, they raise their cue tip a little bit. I have to ask, what's the point of having practice strokes if you're not going to be practicing what you're actually going to do? Then again, the angles are deceptive on TV, but that's what I see. M.D.-BCA Instructor/Referee.