Do you use chunks, chips, or pellets? More heat don't necessarily equate to more smoke. The quality of the wood makes a difference which is why many folks around here use maine grilling woods or fruitawoodchunks. These woods have higher moisture content and produce some good quality smoke. I've only bought fruitawoodchunks so far but I've been happen with them. I get mine in "cookshack cut" chunks which allow for good smoke times and reasonable sizes for our smoke boxes.