I think a very simple solutions is to have 2 basic classes
1. A truspec class where it's all spec'd out, including the battery. A good example of this is the
new Truspec class being started by OC Circuit and ABC Hobbies. But I think a spec battery will need to be added to the formula also.
2. An open class, done deal, with maybe a tire spec which is a great equalizer IMO. What ever works best for you is what goes, but it doesn't have to cost the moon to be competitive.
It's so much cheaper to go faster with a mod motor then mucking about with ESCs and monster batteries. The only reason programmable ESCs and monster batteries came along was due to motor limits in the classes.
I think the advent of this techno war will be the return in popularity of the mod class as more people understand it.
At least these are my viewpoints.