TECHNICALLY... it damages it every time you hear that sound.. (though would damage the starter, I would think.. and not the flywheel)
starting after running, or "sticking" as you call it is the same end result.
The debateable part would be whether or not it damages the flywheel, at all..
again, unless it were misaligned, I wouldn't THINK so... someone else will chime in with some opinion, or experience with this.
Ray
