We have been leaving our analysis on HIVE, but agree with much of what you say here. Certainly higher return rates are possible with a smaller portfolio size. I have upped you to an unlimited 100% upvote here on STEEM as long as the autovoter is working :)
Would you be interested in working with our team to automate some of these activities? I currently am working with 2 other developers on the LootKit team.