For the moment, your Steem is more valuable than SBD. This varies with the market. By the time your post pays out (a week after you post) the market may have inverted.
Historically, SBD has generally been equal or sometimes greater value than Steem, so my tendency would be to stay with the 50 - 50...
"...I see Steem but I must be blind as as bat because I do not see SBD..."
You can type SBD into the box on http://coinmarketcap.com and you'll find it.