I happen to have a Lang 48 Runabout and ran across some information on a type of guru called The Perfect Draft that is recommended for use on larger offset smokers. I am a bit skeptical and was wondering if anybody has experience in its use or if you know of others that have used this piece of equipment. Sometimes it would be really great to have something that would do the job of holding temp without constant babysitting your smoker. Helpful comments would be appreciated..............