Another method is to use an adjustable jig like Pete Cosky's. I own one of Pete's jigs, they are inexpensive and work well. I framed up a number of V2.2 using his jig. These photo's are actually off the two V2 fuses I built for Pete. If you want a great all purpose jig that will cover everything for a 40 sized trainer/sport plane up to a 40% ( the jig is built on a standard 96" door frame) this is a great option. You need to ask Pete for two extra stations when you order it. the black magic needs 10 stations in the jig.

Pete is a great guy as well and a real asset to our sport. Pete's website - http://petesrc.home.comcast.net/