After trying out both the Silver and the Gold models on my mini-wsm set up over several cooks I think I prefer the Silver with the single vent at the bottom. The tin can mod over the vent works just fine now. I like the simple, single handle vent control. Also, the coals seem to burn more evenly with the Silver, with or without using a charcoal ring.
Just sayin'....
Just sayin'....

