Hey man, congrats and i really think you made a good decision buying steem power as an investment especially hf19 has a really great payout structure. I expect one could double his money about a year if he keep compouding with the 50/50 payout and could br more if one convert all the steem into SP everytime its payout.

You may check the calculation in my post and see if this inlines to what you think. Great work.