Lol ,I run into this problem time and time again ! In my younger days the brain was much sharper and figured things out faster but HERE'S THE TRICK! On thin woods you don't have the weight of the wood to help slow things down.Now to help you control your detailed cuttings you need to find your pivot point with one hand and press down on the wood keeping it from moving around on you.That's it in a nut shell.You have no control of whats going on if you don't press down.You can turn on a dime and get a nickel change if you do this.. I forget this enough cutting thin wood and am overjoyed when i remember to do this.