Flatlander,
I was tipped off to the Vic archery HV's by one of Earl Jeff's posts a few months or so back.
I now have em in .400 and .350 but have not set up the 350s.
The weights and OD's are like this (from Vic archery website. Vic archery seems to be one of the arrow companies that actually list the specs on their website in an easy to find place)
.300 OD = .287 GPI = 6.9
.350 OD = .284 GPI = 6.4
.400 OD = .282 GPI = 6.1
Look on their websites FAQ for the specs on nock and alum insert. Good luck in whatever you choose.