I think you are on the right track to having larger bass if that is your goal. It's funny to see you having to take these bass out because I have a friend that would have paid you about six dollars for each one of them. I would try to increase your forage base while you continue to remove the smaller bass. You could remove a lot of your weeds and increase the size of your bass with tilapia. You might also consider adding feeders. I have a pond that's about the same size as yours but its only in its third year. I stocked it with fish about the size as the ones you caught. I feed them with a feeder and now many of them are over three pounds. I also stock tilapia every year for additional forage.