been having a problem with my buggy

[simplechamp]

I would say 20C burst rating on the lipos is too low also. You can get a lagging effect from that.

From the Castle Creations FAQ:

5. My vehicle acts like it has "turbo lag" (poor acceleration/punch for the first few feet or yards, and then it "kicks in").

Make sure you're using high quality batteries, and a battery connector capable of high amp flow (75A minimum!)…we recommend our 6.5mm CC Bullets, Deans Ultra connectors, or the Traxxas TRX connectors. This behavior is very typical of a battery pack that is having difficulty providing the power your vehicle/system requires for top performance. The faster the top speed of the system, and the more traction available, the harder the batteries have to work to accelerate the car.

The lowest packs I personally use are 20C constant, 30C burst, and once they need to be replaced I definitely plan on getting no less than 30C constant, 40C burst.