I want to set this racquet up a little better for my game. I would like a little more power on my serve, but i would like to maintain sufficient spin on second serves and groundstrokes. Basically, I'm looking to add some weight to the racquet while not losing too much of the original balance of the stock setup. If anyone could just recommend me some starting points that they liked with this racquet that would be greatly appreciated, as this will be my first racquet I've ever customized. Thank you very much.