...I don't know if I can physically catch and cull enough to meet your recomendation. I may need to look in to electrofying to get a large # of fish out.
Shawman, you've got a large pond, and I can tell you from experience, too much experience BTW, that effectively culling LMB via hook and line alone is very difficult to do in that much water. For the past few years my wife and I boat fish our pond at least twice a month. She fishes for pic fish, and I fish for culls. Other than when we have guests, I can't even remember the last time I threw a lure in anger.
Scott is correct, electroshocking is easily the most cost and time effective way to remove large number's of LMB. We've done the forage carousel, and it always seems to temporarily benefit the LMB we're trying to remove anyway. Electroshocking will allow you to set parameters that work for you, and cull accordingly from the LMB shocked up. It's also a very good way to get a feel for your forage numbers and condition.
Three years ago we had our first electroshocking and Clint,the guy that shocked our pond, took all the LMB we wanted out. He told me he cleaned those fish until it was almost time to take the kids to school the next morning. Every LMB under 2#'s was removed, and my marriage almost ended because of it. My WAG is that we removed between 150-200 pounds of LMB. No sorting, no grading, no weighing. They had to go.
These are a few of the buckets of the LMB that were removed.
Last year, we only had to remove under-performing LMB, and I carried everything we culled across the road to my neighbor's pond. They all fit in one big aerated Igloo. It was a much better scenario than the electroshocking 2 years before. Hopefully, when we electroshock next spring, the LMB numbers that need to be removed will decline even more.
As far as forage, we continue to add CNBG from our brood pond, crayfish, and both early and late season stockings of tilapia. The reduced numbers of LMB and the added forage really helped us turn the corner as quickly and cheaply as possible, and our pond is much healthier because of it.
Good luck with your plans.