Righty,
Wrong. When their pap doesn't match up to the pap that they use in the drilling instructions, and they want it to look just like that, either you're going to piss the person off, lose a customer, and get a bad rep, or you can explain that they're just suggested, and that you will drill it personally, for their release, and it may not end up looking like that. Or, if you know that it's not the right drilling for their game, talk to them about why it isn't the best layout for them. If they still insist, drill it for them, but I used to mark on the sheet "Customer demanded layout".
It's the job of the pro shop operator to not let the customer shoot themselves in the foot easily.
For example, I had a guy come into my shop back when internet balls were just starting, and the Orange Piranha was the ball to have. 1 inch pin, 4oz of top. Guy wanted it to go long, snap hard. Told him that the drilling he wanted wasn't possible with the ball.
Another example. Guy came into another shop I ran, was throwing a Puma drilled with the pin next to ring, cg in grip. Wasn't working in the house my shop was in, so he wanted something that hooked lots more. I did drill him up a V2 with a modified rev leverage layout, and dude got mad that I put an extra hole in the ball. "No one else has extra holes in their balls!"