I stocked 6" WE back in 2012 & 2013 (LMB stocked in 2012 & HSB in 2013) & have done a couple in-between WE stockings since to stagger the classes. Pond size is around 3.75 acres. Pond also has LMB & HSB in it. Ironically when we go fishing, we quite often catch more WE than the other 2 apex predators (LMB & HSB). Biggest WE caught thus far was around 22". I think that the WE are somewhat keeping the LMB recruitment in line, as you catch some small LMB, but not a lot of them. We also have aeration via 3 bottom diffusers, which I believe has helped us with the WE (and all other fish) staying alive & well.