Any experience with Arsenal metering prism on Hasselblad?

[olwick]

I see these metering prisms on eBay, apparently made by the now defunct Arsenal factory. Does anyone have any experience with them?
http://www.ebay.com/itm/110859451321

Mark

 

[Andrew Moxom]

They work, okay...but cannot be sure if they are set to work with an acumatte screen though. I am selling one if you want one??

 

[Uncle Goose]

You can always contact Arax for one, then you know they will work and you will have a year warrenty on top of that.