I thought my bench letter was fairly explanatory, if digested thoroughly. Let’s flip the spectrum to summer. Any day above 90 degrees with a beating sun on dark brown cement will not “cool your buns.” It will cook them. How many hot days will Oroville have next summer? As I said, the slat wood type are comfortable and useable at any temperature.
And the posture angle. Do you like to squat or lean? I guess it depends on the moment.