Curation and Promotion Stats for Nerds
I tested the promotion service offered by 
@smartsteem on 2 Posts in the Same Tags
Both posts are simple Cannabis Photography I personally took all the Photos and Posted all the content. The test is to see the difference in promoting before and at the 15 minute mark (25% curation). The first Post "Sour Kush" was curated at the 15 minute mark nearly precisely as the minute turned from the time it was posted. The 2nd post "Blueberry" was curated at about 1-2 minutes from posting.
Breakdown
Sour Kush
Promoted @ 15 Minutes, 25% curation.
https://steemit.com/cannabis/@phusionphil/sour-kush-2005f749021fb
Blueberry
Promoted within 2 Minutes of Posting, <2% Curation
https://steemit.com/cannabis/@phusionphil/blueberry-fd594eb9dc0f6
*** Edit ***