First, I LOVE my BBQ Guru on my Big Green Egg. Best money I ever spent on an accessory for a cooker.
I bought a used Backwoods Gater and an adapter plate for the Guru. I found it easier to regulate my heat on the Backwoods without the Guru rather than with it. Remember my cooker was used, and not nearly so air tight as a new one, and that may be a factor in my results.
I wrote a post to the Backwoods-Smoker forum titled "My How-To Guide" on my experience with Backwoods setup. Link here: http://www.backwoods-smoker.com/foru...php?f=4&t=8509
I am sure others disagree, just my opinion......