You could move your USD Lending earnings to BCC for a little of those gains, like using the exchange as well as their lending platform. Why not have a little of both?
I agree that it sucks to get your USD investment back, but at the time of my investment, I only put in $100 USD so getting that back isn't a big deal with the interest it earns us.
I can withdraw everything and buy BTC . . . I'll be much more ahead.