That's some great looking Personal Chickens, Irv...................
i'm always a little leery of "the next new-fangled gizmo", but it seems you got it dialed in pretty good!!!!
Troy did a thing or two also & it appears to work fine.....strikes me as something that's very fine tuned where you leave it completely alone & it will do better.........
look forward to more testings with perhaps an extra long cookup to see how it would do in that case................