I agree with Darcy here.
In addition, adding something to it is not going to make it play better, and that IS the primary consideration. Plus, adding inlays is going to require a refinish and it's got a leather wrap, so that must be protected or removed and replaced.
It was a gift/prize to begin with. Take the cue, sell it for what you can, and order another with the bling on it that you desire, would be my advice.
Gary