I have a Gibson SG Gothic guitar and I'm trying to remove the pickguard so I can install new pickups. I've removed all the screws and the bridge is off, but the two screw cavities right next to the bridge pickup are still holding the pickguard down! I don't know if that's the correct term for them, but they're the holes that the screws which raise and lower the guitar's action go. Any tips for me? It'd be greatly appreciated!