Thanks to all - this has been a really great discussion. But for some reason some of the replies are blank, but I catch pieces when others quote portions in later replies.
So apologies if this is covered previously: what was the verdict on hitting bunker shots - especially the 55 or 60? Does one work better than the other? Do you still use the straight back, straight thru putting stroke? There's an Andy North video on the website for a long bunker shot and he looks like he's using more of a traditional swing https://www.squarestrikewedge.com/videos/. Of course, he's good enough he probably could hit it with Jogaan's umbrella and still get a good result!
I'm just getting back in to the game after a long period of playing once or twice a year. My current clubs stop at a 50 deg AW and I'm trying to decide on trying something like the 55 deg SSW vs a more traditional wedge like the Edison.
Thanks again for an informative and entertaining thread!