You had 25K LKY...The way LKY was setup it was impossible, to mine that much, that quick, without a botnet. And you had to stop, because Botnets are less effective, at higher diff...
Hm... Why don't coins get released at say, 5 difficulty, let everyone get setup, then drop to 0.5 difficulty or 1 difficulty after block 500 or so. I would think that is such a fair idea, so everyone is mining when the difficulty is set to drop. Then you can go with whatever other type of scale you want.