Okay, let me get more precise I am a long term Orbiter player (if you know it) and have lots of experience in X-Plane, too. I am into realism, as far as it makes practical sense for a computer game like kerbal I don't have any issues with a real flight model. So, of course i played a modified version back in 0.9. I don't mean a simple LKO return. Of course i've done that. Dozens of times, and never ran into issues - and i popped my chutes very low, like they should (immediate hyper high G force stop nevertheless, as you all know). The heating in LKO reentries shouldn't be a problem anyway. But: When returning from the Mun, you have about 800 -900 m/s more speed. A "shallow" reentry will end up in a bounce back into space, followed by a dangerous steep reentry if you aren't able to do corrections. A steep reentry - well you all know.... So i aimed at about 25k-28k, and the capsule followed a nice Apollo-style flight profile. Oops i forgot to mention i had a stack of 2 capsules and a service bay (they used up all of my heat shield). On the parachute, and later on the ground, the attached thermometer didn't measured a falling temperature, but still rising. My question is if this is through belated conductive heating or if it's a bug. Another thing i did see was that the mk 2 heat shield didn't lose any ablator when i tried to do a reentry with a hitchhiker container. But that's another story. Maybe it's just that the Kerbin atmosphere resembles the earth's atmosphere, but it only reaches to 70km - and the planet is significantly smaller while having the same gravity. Coming from Orbiter, i am used to other dimensions. On Earth, you need 7000 m/s to reach LEO, as you probably know. So breaking this speed with Earth's atmosphere is a whole different story in terms of heating. With a real Apollo capsule, you brake with a maximum of 6g during reentry when coming from the Moon. You won't reach that value in KSP (without popping your chute, of course) I think that the relation of deceleration to heating is too far off in KSP.