one of the major advantages of the original 340 was it was near perfectly balanced and didn't vibrate much. and the jr drag unit coold handle some serious power. If these copy's cant do that than I'm just lost all interest. hopefully these issues are just from these being new to the market and needing a good shakedown.. I'll wait on purchasing any until they are addressed by the manufacturer. it almost seems like these were rushed to market in response to the juggernaut. this seems like a rather poor copy for a company that has been sitting on this products development for so long. you would have thought after listing them as ion development for years that this would come out as a flawless well tested improved version of the original. god knows they had the time to do it right.