Multiply by 25.4
That's a real problem with conversions: when it comes from conversions
On the French Forum, they use 90mm x 165mm
hmm... do you happen to have a link to the French forum?
I'm more inclined to think it's the nice numbers of 90 x 165mm
BTW> does anyone also have a measurement for the positioning of the mount for the Sword, perhaps as relative to the mount point for the Spotz?