I have become pretty effecient at fixing problems with the superstar. However this one has me stumped. When you turn off the switch it is set up to throw a target so the arm is no longer cocked. Recently it has started machine gunning when we ( turn it off) the only way to stop it is turn it back on or shut off power??? I have had times when it would keep throwing targets while usinbg it and adjusting the Micro switch or clutcg etc have corrected this but I have never had it keep throwing targets when you turn it off before??