well then its rly up to u and what u want to do with the motor setup. if it was me personally id go with whichever setup of the ones they recommend that fits your flying style. you could start out with what you have now and if you feel u want it to go faster or something you can always upgrade down the line. what they recommend is usually a rly good base to go from and then its rly just trial and error from there to find what u want. some setups can pull it straight vertical, others will be aerobatic but not crazy, depends on what u want.