Going to convert some old fins and I'm sure I'll figure it out, but if anyone has a proper dwg with measurements would be nice.....?
I emailed Select and just got a photograph, something lost in the translation to French 
I have one of those select fins with adaptor, I could pull the adaptor off and take photos with an engineering ruler laying across it if that's a help.
Thanks, they've sent me the original drawing - like original hand drawn pre-CAD schematic -with all measurements etc
I'll post up here later for everyone, once I can save it etc
