I have been trying to use lump in my Chargriller w/ fire box. I have made mods (chimney, basket, baffle) and still struggle to get anything more than 200ish. The Chargriller web page said that I needed to use whole logs. The question is what wood can I use? If I find some oak or maple around can I use it and add Hickory, mesquite, etc for flavor? Any and ALL input is greatly appreciated!