Most places I see that are using either baskets, or trays are not stacking them out here. Maybe that is a Health Code thing, but, they use pre-cut sheets and slap the sheet onto the basket or tray at time of service.
If you are having a problem with sheet trays leaving your place, you need to bus faster.
I'm feeling bearish, and I'm packing a Wusthof Grand Brisket slicer from MABA
"perhaps...but then again...maybe not..."