They have drained West Boggs now 3 times and restocked it due to too many shad. However due to it being only 600 acres, it’s a doable project. With the size of Monroe and Patoka, DNR relys on other predator fish species stockings for shad control. Depending on severity of our winters, Monroe and Patoka occasionally had a shad die off to help with control of shad. However, that is not guaranteed happening every year. On Patoka, DNR once stocked sterilized Northerns to try and control shad populations. People fishing, eventually caught them out. In my opinion, stocking northerns all but destroyed the small mouth bass population in the lake. I caught northern up to 8 lbs and used to catch a lot of 3-4 lb smallies where then the Northern Pike had taken over. Northern Pike fishing only lasted 3-4 yrs before they were gone. While DNR is stocking predatory fish species in size of extremely small and no larger than 1 to 3 inches in size, survival rates can be small as well as growth cycles to large size takes years to create a sustainable predatory population to control shad. Your talking years before we see new growth size in fish such as crappie and blue gill size has never come back on Patoka period. Sometimes it’s all an experiment and time is the factor in seeing results.