Mirek, one more big supporter of this concept here. You raised very valid points, only one that is touch open to dispute is “It would be relatively easy to implement (I think)” – the engine manufacturers/tuners got slightly bad taste of this system due to the struggles of some of the F1 engine manufacturers, though if you don’t try to squeeze every last ounce of performance out of the system, things should be a lot more manageable. I also suspect drivers would love it.