I sometimes move around in my house while talking, since I’m a nervous guy when it comes to phone calls. Having the phone at chest or waist level makes it a lot quicker to change hands or even use lower arms or elbows to hold things or open doors or whatever. It’s just less constraining, even if it’s marginal.
The wind resistance shouldn’t be dependant on the mass. Shape of the sleigh would be the real factor.
But another thing to consider is that the gigantic mass and heat capacity. Given that the sleigh has a good heat distribution, it would take a lot of air resistance to actually make the sleigh combust. I don’t have a decent guess for the average heat capacity, so I don’t actually know if it’s significant enough, but the calculation is more complex than just looking at the speed.
Kerbal Space Program (not 2) has around 300 hours on my steam account. I have played around equally much on another account. KSP2 is painful to see perform so badly.