Just saying 20 POS reward vs 1 POW reward = Premine advantage.
Not even worth the mining costs unless it hits a 100k valuation or so. Because I have had over half the network hash for 2 hours now and I only mined 90 coins. So your POS blocks >>>>>>> any POW costs.
I mined 30 coins and now have over 800 from staking. PoW is only to get coins to start staking, where the real 'mining' happens. Looks like you didnt read the OP.