i have a walkera #4 which i started to learn on and wrecked. my new blade was just sitting there to be flown until i learned to fly. after wrecking the other day i decided to pull out the blade and it is sooo easy to fly. my question is is there some type of voltage cutoff for lipos to put on the blade. i purchased two of them and its flys alot easier with less weight. sorry for the newbie question...