help needed, I have a recently purchased BWS Competitor with a 25cfm BBQ guru, I have problems cooking hot and fast, I cannot get temp above 275 (best case). I appreciate any thoughts. I am using water (usually boiled before filling)...using cowboy characol, my guru is in back left. I start fire in back left. I have pulled heat deflector, but that just boils water faster...need some advice. thanks in advance.