correct metal for tuning plates?

[tmcmaster]

Putting new plates in Priscilla this week... Anyone have an opinion of the best metal to use?

[jonboy]

IT was suggested for my offset to use 2 10" pcs of 1/2" plate and then step down to 6" of 3/8 " plate. Jamb the first piece tight against the firebox end/baffle and increase spacing by 1/4 " as you install additional plates. Your spacing may be plus or minus those.
I would match the plate size(thickness) to your baffle size(thickness).
I haven't "tuned" mine per say, but the results have been a more even cooking temp across the pit.
Best metal = free scrap plate cut to size...:)
jon

[Smokin' D]

Well I don't know Priscilla, but in my Silver Smoker which has a 16" dia. smoke chamber, I use 1/4" thick steel plates that are 5" x 16" and move them around for different effects.

[Harbormaster]

Best metal = free scrap plate cut to size... DING DING DING!!! That's what I have.

I use 1/4" thick steel plates that are 5" x 16" and move them around for different effects.
Mine are 6" x 13" I think, I use 5 or 6 per pit. They really do help even the temps out.