If the price of Steem is increasing just power up 100%. If decreasing, go for the 50/50 and buy STEEM later when it's cheaper. Check my blog and you'll notice I've been going full Steem Power for the last week or so. I've never powered down.
That's the financial side of it. The content side involves building relationships and commenting on other popular posts in a way that adds real value. This post may help as well: Last Week I Made $1,500 Worth of Cryptocurrency Blogging on Steemit. Here's How.