The regular firestorm is SLOW stock and the Flux is most defiantly worth the extra money. Nicd batteries will really hold you back with brushless and low turn brushed. Standard Tamiya connectors tend to melt together with brushless power. I put a sidewinder 5700 in my firestorm which is what the flux comes with and on stock gearing with my 5500mah 2S pack I clocked it at 46mph with my radar gun. I will warn you though, your going to need to learn to have a light throttle finger or you will have you truck shiny side down ALOT with wheelies at almost any speed. You may also want to get an extra set of tires for the back because it won't take long for the stock ones to become bald in the center.
