From Matt Grubb via the SmokinTex Forum:

Smoke Jerky for 2 hours using no dryer. Smoke at 150 degrees.

Then I dump the smoke box, ashes and wood, (BTW I only use 1 small chunk of hickory or mesquite) Make sure not to dump anywhere combustible. And turn down the heat to 120 degrees--add jerky dryer and check every hour or so until dried to your liking.

I make around 15 lbs of jerky a month and have been trying to get it down to a science. I bought a Digi Q from BBQ Guru and I can set the temp to EXACTLY what I want to smoke at. There is no temp swing. It works perfectly with the SmokinTex.