I know they are in MI, but can't be more specific.
PM Spydermike or BBQBubba. They ARE GLBBQSC and they've both always been very helpful to me with any questions I have. OR you could use the "contact us" email option on the website. They've also always promptly replied to that to me before.
Those guys ROCK!
Big JT's Smokin' BBQ Competition Team
“If we could change ourselves, the tendencies in the world would also change. As a man changes his own nature, so does the attitude of the world change towards him.
We need not wait to see what others do.” - Mahatma Gandhi