Well today,, I performed the hot shins test on my ST,,, since it was 33c,,, and I was lightly dressed anyway. Just to remind,,, my ST is pretty much stock in the engine cooling department. However,,, on my last valve inspection, I left the inner cowls out. I did a one hour ride about town,, followed by a 45 min. evening ride. My bare shins survived,,, no problem. The seat and tank did heat up some,, but not severely. I don't think the frame got to the saturation point, and I was pretty comfortable. One other thing that might have helped,, is that my short legs require the seat be in it's lowest position, which closes up the gap with the tank. My current windshield config creates very little back pressure,,, so very little engine heat is sucked up towards the rider. I do not have the lower deflectors in place. And, I have yet to install my mirror deflectors,, which may increase my back pressure levels somewhat. I do have a 1800km ride coming up in a couple of weeks,,, and I plan to insulate the bottom of my spencerized seat,, and fashion a riders-beads seat cover to help keep the crotch area comfy'er. We shall soon see,,, Cat'