I've just purchased a second hand pro smoke dragon kamado off marketplace in near new condition. Looking at deflector plate options, not sure what size is near optimal, any advice would be much appreciated. The deflector plate would sit on a rack with 430mm diameter roughly.
I'm leaning towards this product, a 15" (380mm) cordierite pizza stone: https://www.amazon.com.au/AILUROPODA-Mul…/dp/B0B152Z914/