I've been servicing a few newer Aqualung first stages with the oring/orifice I think is also on the Kraken and in the Phoenix. As I was looking at it, I noticed the underside opposite the volcano is convex. So I wondered if this was done on purpose incase you happen to have an older Conshelf or double hose reg with a milled orifice and it gets damaged, could you get one of these and position it OVER the damaged orifice? I'd think you would also need to get a longer pin to match the spacing difference. Luis or others, has this been done? If so are there any hints/tips you would recommend? I have a Conshelf with a scratched edge on the orifice and it seems Herman no longer has the sanding tool he made years ago to buff it out. I'd like to service it if possible.
-Kevin