I'm stuck on the first step - getting the handles off. I popped the plastic caps, took the screws out, turned the handles to the open position - they didn't come off. i tried the handle puller tool, but the l brackets slip over the back of the handle. I tried using a c clamp to keep the brackets in place, but that idea didn't work out either. I had one of the three handles off a few months ago, but now it's stuck on as well as the others. Here's what the handle looks like. You can see why the puller doesn't work. It doesn't have enough to grab on to -