I just glued the front canopy to the back part. http://www.tfw2005.com/boards/radicons-customs/250266-rotf-breakaway-update-canopy-mod.html
If you undo the screw on the side you can free it up with removal of the front of the canopy - you can store it behind his neck in robot mode and hold it in place with the back of the canopy. Alternatively - you can do the same but tip his head back so he's looking up slightly in jet mode - then when he's in robot mode the head look like it's in a better position... you might find that works better with Thrust though - and it does look a little on in Jet mode. So I prefer the removal of the front of the windscreen for the robot mode then you get full movement without having to cut chunks out of him.