Yo strecker25, the charcoal idea has been around for several years and many MES owners have tried it, including myself. The primary reason MES owners gave charcoal a try was to generate a smoke ring in the meat. The results have been very mixed, sometimes it worked and sometimes it doesn't. The bottom line is that charcoal does nothing for flavor/taste, and great tasting Q is all about flavor/taste, not a smoke ring. MES owners are strictly backyard BBQers and the only people who will be impress with their smoke ring would be them, everyone else eating their Q will be paying attention to the big flavors and how it tastes.
Having said all that, one of the fun parts of smoking Q is experimenting, your experimenting shows your thinking and trying to take your Q to the next level. So go boy, keep at it you will hit upon ideas that will deliver great results, some you share and some we keep to ourselves because it makes our Q unique.
Smoke ON DUDE!