When hitting straight across the table to have the cb return to your tip,
follow or draw won't matter as long as you stay on the vertical center line of the cb.
When you get off center hits by accident, then it matters.
For the truest angles off the rail, you want medium speed and hit the cb one tip above center.
One tip above center gives you a naturally rolling ball.
I would like if there's physics to confirm but it seems like follow is a little more "error-resistant" than draw.
I feel like you hit off center with draw, the ball's slowing down and getting
more sideways revolutions per foot travelled, than it would with similar off-center hit with follow.
Draw also prevents sidespin from 'converting' into natural roll as soon so the ball arrives at the rail
with a little sidespin, which might have worn off if you were aiming at a distant rail with top + a hair of spin.
Kinister has a drill where you follow a center-table object ball straight into the corner a few times,
then try to draw into the opposite corner a few times.
No matter how carefully I try this, following into the hole is always far easier. It could be because it requires less
force than the draw, but I suspect it's also because follow can accept an off-center hit more easily,
the immediate rolling action of the cue ball 'dilutes' the accidental sidespin.
In a nutshell I think kicks are easiest to predict with a naturally rolling ball.