Hello- I've just purchased a MES 30" and have a question about the smoke box. Does the flexable bottom metal flap go BELOW or right above the heating element? It seems to go in either way and the diagram in the manual leaves much to be desired. Also, the manual says to soak the wood chips for 30 minutes, but I see most out here put them in dry. Any comments? Thanks very much for any input you can give.