Oh wow, that is a very bargain rate to buy Steem with your ETH. Maybe you can go ahead...

Steemit is wise to split payout prices into three - Steem, SBD and SP - with SBD having the lowest percentage. And that happened when I planned to use every SBD cent I earned to buy Steem! Now my SBD earning has almost stopped. Anyway, at least I do not have the extra step of buying of Steem as I get them directly.