Plain Eddington is a lifetime measure, favouring those who've spent years in the saddle as well as those who cycle prodigiously in their youth.
Having calculated plain E for getting on for 10 years or recorded rides, I'd like to calculate what it was at the end of each of those years; and what it would take to maintain it over a rolling period of n years.
The first would give me a satisfying feeling of progress; the second would give me an incentive to keep riding at least as much and as far in years to come as in my better years so far. That feels like a better target than chasing an ever-harder higher E (though it would be satisfying and achievable to get to E = 100 by the end of this year).
What I'm thinking, and the approach of splitting 600s to rack up a few more Es, suggests that
Goodhart's Law applies: as soon as you use a measure as a target, it starts to influence the behaviour it was intended to measure, with sometimes unintended consequences.