It seems like all the GEM's on eBay are the older, aggressive type. I've thougth about getting back into using a GEM occasionally but I'd rather use the newer type like the Contour. Did ASR cut back on GEM production as the years advanced?
There actually is a push button gem contour. Some parts of the earlier contours are also steel I think so it has that going for it. I don't have one handy right now because I gave it away for someone to start wetshaving, but it was good....
Now I'm sure someone will correct me if I'm wrong but the Contour is a push-button style and the Contour II is the flip-up style.