I had pushed a bunch of comments up to .02 after @timcliff's post and then noticed that the .02 didn't payout. So that is when I started doing some tests which lead to this post. Was really thinking it was just the weaker 0.02 displayed value comments that weren't paying out, but after testing as high as I could vote without hitting .03 and they didn't pay out I've decided that .03 is the current cut off.
Either way smaller members shouldn't waste their votes IMO.