I'm in this and it's very good content. It comes in slow and steady drips but it's quite indepth and the depth of experience that Ian Sweetman has is pretty impressive. He has a 2 man shop in Hertfordshire doing true best quality work under his own name and for the trade, as they all do. It's a lot of fun and they're extremely upfront and open to any question you can think of. No secrets or witchcraft.