Jignpig has previously hinted to how he manages his pond. He seems to literally have a personal relationship with each bass in there. He is very astute as to which bass are showing good growth rates, which are not. Which are male, which are female. He keeps the numbers of bass in his pond at well below carrying capacity by removing all slow growers and keeping those who perform well. Which as has been mentioned, means there is so much food the bass literally have forage fish swimming into their mouths. This management style may seem simple on paper, but requires a lot of work and the right "feel". The pictures of Jignpig's insanely fat bass prove he knows what he is doing...

I believe Nate also posted a few pictures of insanely fat bass from a lake he manages where bass numbers were kept very low. Again, simple concept on paper, not so simple to pull off. The use off all female bass may make the process a bit easier...