As part of my 'GMs ought to be able to play sometime too' initiative I'm running a one-shot of this classic this Saturday (13th Jan.) I've re-opened the listing due to RSVP's. If you'd like to play a classic one-shot send me a PM. This is explicitly for GMs who never get to play (or haven't played in a long time.) The long term goal is to have a group with rotating duties so no one gets burned out. As we trade off we could be using any system.