StewMac wrote me a very nice email, which basically said:

"why don’t you measure the existing ones and compare them with the diagrams on our website !"

Looks like I’m off to StewMac to buy a pair of digital calipers ! I am reminded of a song about a bucket with a hole in it and a girl called Liza !

I also asked them about which tools were needed to build one of their Resonator kits…..the list was as long as my arm !

Poooo !