Chalk splatters after about 10 hours

[CecilOne]

Obviously, fair is fair and foul is foul; using the outer edge of the base and a fair pole if there. Many times, we make that call when the ball contacts a fielder while still in flight.

This might be a tangent, but what about this:
Lines are drawn badly at the beginning of the game, either crooked or missing the base edge (can't be fixed). The coaches are often told we will "play the lines" on a ground ball, to allow easier calls, but mostly for the players' benefit who don't have a line of sight.
Legit or not?