My current BR is $75 95% of which is from freerolls. I play 95% freerolls, with the occasional .55 MTT, if I can find it.
I figure when I get to $100 then I'll start playing $1 MTTs. I'm not really a cash player online. IRL, I can do okay with cash, but I just bleed chips online with a cash table.
I'd really like to see the well accepted advice regarding BR management. But all I see is mountains of opinions with no data to back them up.