I would recommend that you stay on the stock suspension until you've got a better idea what you're looking for out of your suspension. Have you driven your car on the track yet? If you haven't, you really should try it out with the stock suspension. Suspension is really a subjective thing, what one likes and what works for some won't necessarily be good for another. I think if you let everyone know what you use the car for and what you are looking for ie) something that will perform well on the track but will be liveable on the street, something that will perform as good or slightly better than stock and will lower the car to make the stance better, something that will excel on the track and will be bearable on the street, etc. That should help some of the more knowledgeable guys, like George, steer you in the right direction. But buying ground controls to use until you buy JIC coilovers doesn't sound like the most efficient use of your money to me. Of course, if you have alot of money and don't mind spending more to do that, that's your perogative too.