just ordered an AMNPS 5 by 8
That's Great Griz---You won't be sorry!
The problem with using the built in smoker is you can't control the Smoke.
The Heating element is for both the heat & the smoke, and that just doesn't work smoothly.
You would go from No smoke, to a little smoke, to Nice Smoke, to Heavy Smoke, to Too Heavy Smoke to No Smoke & then you put more chips in & start that cycle again.
Once you get the hang of that AMNPS, and learn how to get it lit properly, you'll have Nice Even, consistent Smoke for up to 11 straight hours, and never too heavy, unless you light both ends, which I don't advise (I did it ONCE!!).
Bear