Just picked up a whirlwind yesterday. My second pin (first is an EM). Anyhow, I'm pretty sure the balls were never changed nor was the playfield ever cleaned. It's incredibly dirty so I'm in the process of clearing out the playfield. I am stuck with the ramp that is on the left side and then wraps around the back. I'm sure there is some easy trick to removing it. I've removed the two screws at the end and the couple on the side. It feels like it must be held on the back side and I feel like I can feel a couple of screws. However, I have no idea if there really are a couple of screws and, most importantly, how one would be able to get to them to remove them. So, what is the secret to removing that ramp?