Most of the tank crews dispensed with any sort of case catcher, especially the bagged sort, after about 3 minutes or 3 seconds on a good day. They would fill up or cause a jamb in the shute in short order. A total waste of time and effort especially as the red-hot cases were dropping through at 10x / second and to clear the bag or shute with your hands was fraught with burns. The BEST was a sheet of cardboard to act as a deflector to deflect the cases into a 24hr ration pack box that was man enough to handle all the brass from the big 50 and the 30's in the tanks and the Ferrets. That's the reason why we didn't pursue it with the L8's and L37's
Just need to elaborate...... By 24hr ration pack box I mean the large box that 10x 24hr ration packs fit into!