Originally Posted by Christine27

Practice and pins. I've used the attachment on at least 10 or more projects in the past year so my corners are getting better than they started out. I put one or two long pins in to hold the miter. And if I'm really desperate, I talk to the corner! I tell it to behave! (Whew! I haven't had to talk to the corners for a while! It's a little embarrassing when there's someone there to hear me!)