I don't have that sander, but with mine I get snipe in a couple of situations. If I try to take too much wood with one pass, I try to limit my depth of cut to 1/128". That equals a 1/8 turn on my depth adjustment, any more than that I get snipe. If I am sanding anything thinner than 1/4", or shorter than 10", I use a sled. If I don't use the sled it almost guarantees snipe. On shorter pieces of stock, if I am not using a sled, I will press down on the stock as it enters, and again as it exits, the sander.