Lid comes off I assume to access food grate.Do you use just one grate ? If you use two, howdo you access the lower one ?Is a water pan used ? If so , how do you access ?How do you get to the fuel basket to add ?If you have to lift off top grate to access lower one, or lift out both to access water pan , or lift ENTIRE barrel to add fuel,I fail to see the improvement over my old first silo smoker !I have heard they hold temps great and they do LOOK cool, but if they are not convenient to use ,why bother ? Please educate me.