Umm, to a degree. The more that steem dollars are valued more than $1 usd, the more you want to do 50/50.

This is because steemit is paying this portion out as if it were worth a dollar, versus the $1.50 to $2 it's been around lately.

So you actually make more by getting paid in steem dollars and selling them. You can then just buy more steem than you would've gotten had you chosen 100% power up.😀