If you could borrow his 5000mah battery and put it in your plane, it would help. You may have been feeling things like different throws, different trim setup, different CG, etc.

The Venus is built pretty heavy, but it seems to handle the weight very well. I would not hesitate to go w/5000mah. It would be good to compare the weight of a 6S 5000mah pack to an 8S, 4000 mah setup.



I have plenty in reserve. I have not even come close to using up a whole charge. Batteries do better/last longer if you are not fully draining them all the time.