I wonder how much just being a V3 helps out.That new firmware is supposed to work wonders.Stock Talons.The calculator is an excellent estimator.However you do not know for sure till you throw a radar or gps on it.Funny thing is that changing esc's changed the top end by about 4mph. Yeah the tires would make a substantial difference by stock weight andf size alone. Well keep up on the updates,I'd really like to see comparable rund s to see what the difference is.