I've only used a pellet smoker and decided to get a cheap charcoal setup but I'm having problems. 1. When using the offset box it seems not enough heat makes it in the actual grill side. 2. Seems to really eat through the charcoal and using well over a bag, even on a quicker smoke. 3. The offset side seems to fill up with to much ash on longer smokes. 4. Is there a big difference in lump vs biscuit charcoal ? 5. Is it me or the smoker? Is there any potential for this to be decent or am I wasting my time?