Well I plan to build back better!!!
PFU? First word is Pilot, last is Up. Don't think the forum mods will let me tell you the middle word.PFU?
I somewhat agree with you but....
I could not live without servo reversing, expo and many other things in these "computer radios". Both my crashes were because I did dumb things! First one because I was giving a demonstration to a group of developmentally challenged people, I was doing a range check and on the way back to the plane I had one finger the the aileron trim and moved it completely left without knowing this. I caught it before I took off but in my haste I did not correct the simple problem. I re calibrated the sticks forgetting about the switches. More to the story but that led to the crash. Second crash was because again I was in a hurry and did not do something I ALWAYS do, a control surface check. I was just trying to add a flap to elevator mix and went about it very wrong! I had no up elevator.
As far as head temps I have copper rings that fit between the plugs and the top of the cylinder. Works great but do not know if there is anything out there for seven cylinders, I use it on all my twins.
I use many mixes on my planes, do I really need them? No, but I really like to have them!!
I flew my first plane back in the day when my first radio did not even have servo reversing. I, for one am very glad the radios have come as far as they have.