Just a warning regarding Blitzwing, I have had him for just a couple of months and stored him in tank mode. Some paint on his forehead has come off thanks to the nosecone, and the inside of the nosecone has yellow paint on it. This must be due to subtle expansion and contraction of the rubbery plastic, coupled with the tension the head spring is continually under. I also feel like the nosecone has stretched at the tab slightly.
This sucks. So in summary
don't store this guy in either alt mode, whatever you do. And if you do,I'd recommend Jet mode because you can unclip the nosecone so it's not continually under tension. I'm pretty annoyed at Hasbro over this, what were they thinking!
Image to follow.