Okay, just re-read your last post. Do you know if the carp are grass carp or common carp? If they're sterile grass carp, disregard the rest of this message. If they're common carp...

You will want to keep a very close eye on them. It might not hurt even to fish for them one day with doughballs, just to get an idea of how prevalent they are. Right now they're probably not ubiquitous due to the large number of bass in the lake. But getting the bass to the optimal level for their growth, could easily allow the carp to explode and take over the lake. There's a guy that posted on here about a month ago who has a lake over two hundred acres that's ninety percent carp. He put an underwater camera in the middle of it and only recorded like two bass in two or three days of taping, and thousands of carp. So obviously that's what you want to avoid.

Since you have the carp, I would encourage you to give serious thought to getting some esocids in there. You can still cull bass to get them thinned quicker, but having the pike or muskie in there will keep the carp from taking over. Multiple state game and fish agencies have used pike and/or muskie to reclaim lakes overrun with carp; in this case you would be stocking them to prevent that from happening (though they would also help you achieve your goal of thinning the bass, and keeping them thinned). Think of them as a natural balancing agent within the pond, the pond enforcers if you will. Just my two cents.