eric,
Good choice on the chartreuse spinnerbait. One of my favorites.
How big is the pond? In addition to culling any bass under 12-13", it's usually best to stock BG over 4" (I prefer over 6") to provide a good spawning stock of forage that the 12" LMB cannot eat. Doing both of those will produce bigger LMB.
Sure, you won't catch as many LMB as fast, but when you set the hook, it'll bring a smile to your face.
Before we give you any more recommendations, what are YOUR goals?
If you, like Theo, are trying to grow large BG/RES, then having an abundance of small LMB is a good thing. My goal is a greater number of 3-5 pound LMB, which is why I am culling the smaller, stunted ones.