Depending on location a 1 yr old LMB @ 12 inches would have a hard time eating a 10 inch GSH , so would a 2 yr old 16 inch LMB. So would 1 -2 yr old HSB.

An easy fix (if you think you have a GSH egg eating problem) is to stock some 1 yr old LMB rather than just 2 inch yoy LMB.