Thanks, that may be what I do. Talked to the guy at pro products again he suggested moving the probe closer to heat source which I did at lunch today. Put it along back wall of cage not quite in middle. My temps at lunch were better, had 78 cool side and 95 was the hottest reading I got on substrate under the RHP. Was 92 inside of his hide which isn't bad. Part of the problem probably is I'm picky as h%&& and want it perfect. I'll get it dialed in one way or another.