Hey John!
1. Remove Heat deflector from your Yoder 640
2. Set temp on your Yoder to 600F and allow it 30 minutes to come to temp
3.Put skillet above burn pot - and place your lit Amazin Smoker on the right side of the burn pot - just enough to avoid catching fire
4. Place cast iron skillet with approx. 1/2'' of il in the skillet
5. Allow oil to come up to temp - 350F ought to do it - verify with temp probe thermometer and test piece of battered okra.
6. Adjust Yoder temp to match oil temp or a bit higher to offset for loss of BTU in heat transfer from grill to skillet.
7. COOK THE OKRA......
8. Eat the okra...and laugh at Yankees that have not discovered the pleasure thereof
( Just kidding my northern BBQ brothers!)
What did we do? Added a bit of smoke to the oil, and added smoke via the Amazin' Smoker plus any smoke from the Yoder.