Dont ask!
Just got back to find the machine shop had screwed up on one of the dimensions.....I now have a whole load of totally useless p-port adapters*

see pic
They are remaking them all.
Should be shipping them out within next 2 weeks
An expensive mistake.........
*slots are too wide but may fit some dsvs still
Mike would they fit the Boris DSV??? Or could one be machined even larger to fit the Boris DSV???