They look like this:
thanks, that is very helpful. So they are the type that is pressed in by machine. I installed mine the old-fashioned way, straight out of the Sailmaker's Apprentice (sew in a cringle, then press in the interior fitting with a die set).
I guess I could measure my reef 1 and 2 (which are installed by machine) and see if by accident they are 35mm.
If I may ask, how much (roughly) is the Godiot gizmo?