Today I made my version of the infamous "Jailbar" or "Tic-Tac-Toe" style bird screen, and temporarily installed it on the BumbleBolt with blue painters tape (brackets coming soon). I know it's not 100% accurate, but it looks close, especially from a distance! Here's a video link, followed by a snapshot of it.
http://www.youtube.com/watch?v=fYEbfVW0 ... ture=inbox
Just wanted to share. PM me if you're interested in a screen (wide open or Jailbar style) for your Thunderbolt.
-Rick