I was thinking of powering my newly acquired Tribute with an AXI 2212/34 and a 3cell 1500mAh battery pack from Kokam. This battery weighs 4 oz. as compared to 2.6 oz. for a 1200mAh pack. Is this a meaningful difference for this size airframe?
What's a good prop size for the 2212/34 with either a 1500 or 1200 pack size?

Thanks for any advice