Hi All. Going back to the start. I first became aware of a Swinging Arm Star-Twin when I found a pair of 'CA7S' cases at the Netley jumble. At first I thought someone had been enhancing a standard A7 number by adding the 'S' but with a little research I found out that Swinging arm Star-Twins were produced. The information I have states 'as BA7S plunger Star-Twin but with a swinging arm frame' it also seems to imply that the alloy head was only for the Shooting-Star model introduced at the same time, so does this mean Cast Iron head on the A7 ST S/A? It also states that the vast majority were despatched to Sweden. Was this just different market forces? or a slightly cheaper Shooting-Star? It would be really good if someone could come up with a photo of a original swinging arm Star-Twin, Any chance? Regards, Peter