Jacob
What goes around comes around.
I had huge 18m 10x5 ft stuff from Lathams and said I wanted it flat clean and perfect as it was for a furniture project. That's how it came, wrapped as well!
If you don't ask you may end up with the sheet from the top of the heap which has boot prints all over, etc.
Going in to select is such a time waster - and may not be possible if what you want is half way down the pile - so it's usually easier to be very clear with your ordering. If they know they can't do it they may recommend something else, or decline the order, which saves everybody a lot of time and effort.
If you don't ask you may end up with the sheet from the top of the heap which has boot prints all over, etc.
Going in to select is such a time waster - and may not be possible if what you want is half way down the pile - so it's usually easier to be very clear with your ordering. If they know they can't do it they may recommend something else, or decline the order, which saves everybody a lot of time and effort.