I recently picked up another stripe in my 2007 Bowman Chrome Prospects Luke Hochevar autograph rainbow. And I did it twice within a month. Both are of the Refractor variety and they look great sitting next to my XFractor and Blue Refractor in my card file.
I got the first one at the beginning of November, but decided to wait to show it off until after the 2011 Mustache FrankenSet had it's time in the limelight. It's numbered 348/500.