I've had trouble with my Iris+ which I believe might be related to overheating. When I first got it, I only flew it near sunset, when the ambient temperature was in the low 90s, but then when I started flying earlier in the day, with temperatures around 100-105F, I began to have problems. The cabin temperature got as high as 131F (55C), and finally IMU1 flatlined on my Pixhawk. I think the cabin temperature at the point of failure was around 53C.
So I thought, maybe put some spacers to lift up the top half of the body to let the hotter air out. But would that affect barometer readings? Would I get extra pressure at speed, or with wind gusts, from air being forced through the interior of the body? And if that happened, would it cause trouble with staying aloft?