Okay he has high volume shop , He's IBPSIA certified does a great job on layouts, drilling etc.
But when it comes to a lower priority job like surfacing balls, he figures he has experience and knows what he's doing. So he cut's a some corners to save time and on the face of it the results look good.
This makes me think of a garage.
It's a busy garage, the mechanic is certified and does a great job fixing cars. But when it comes to doing just basic maintenance jobs, he figures with his experience he can cut some corners to save time for for the bigger jobs and as long as the car appears to run good the customer won't care how it was done.
Would you want to take your car there to have basic maintenance done.
Cutting corners is fine, until that one time it isn't.
I'm sorry but I just can't see any shop so busy, that the few minutes saved by not flipping a ball would make a difference.
It's not like the balls are shooting down a conveyor belt, like Lucy trying to wrap candy at the candy factory.