In typical WF fashion, here's my gift to you this year.
Everyone knows that getting YouTube traffic has a LOT to do with thumbnails. Get a good thumbnail image and your views will increase...a lot.
But how do you get the thumbnail image?
I ran a little test.
I recorded a movie of a countdown timer that ran 30 seconds. Then, I uploaded to YouTube and waited to see what "seconds" would appear in the thumbnail review. The results are below.
So if you want nice thumbnails to appear in 30 sec clips, put them in the 5, 13 or 21 second timelines.