Frank, ponds can be money pits for sure when it comes to growing numbers of large lmb. Frustrated, been there done that! I think you have a great place from what I have seen. What, you have a 5 yr old pond? You have the genetics, just give it a little more time I think. Keep the pressure up on the small lmb and I think you will stumble into a large lmb or two. And enjoy those bg, res, hsb and the bass. As I set back and watch the guest that I let fish the pond, they have a great time, whether it be lmb, bg res or hsb they are after and I don't have all the large lmb that I would like to have. I am betting you have a couple of them out there too. Take a kid fishing and they will show you how great your place is.