Ran my BJ29V3 today on rough water, heart pounding and my GPS for some reason shut down so I did not get a reading but I know it was hauling butt, oh yea it was on 6s 5300 ma Graphene battery's which are very tight fit. I know it was at least running in the 50 mph range I wish I had a camera man to see the action, totally hart pounding and yes with flips, wind blowing to shore so easy recovery,