i second the Poor folks bows spine tester- simple and very effective-
however if you want to spend money there are some good ones out there- i like the ones from oak creek archery- it has the conversion chart on it - so that you can test ali- carbon and wood.
they are Pneumatic- so you need a very small compressor to run it- but the old style ones were manual!
by the way- the veritas is a great rig- i bought one years ago- i love it- dont use it much anymore- and its great to just keep around- for when i retire one day!
only thing, keep the blades super sharp- and it will make beautiful shafts. i use one of these sharpening rigs- they work so well
http://www.leevalley.com/en/wood/page.aspx?p=33001&cat=1,43072,43078build extra amd better guides on the out feed side.
higher drill speeds and lower feed rates - will also improve the quality- i would run a 36" shaft in one minute at max rpm!
i found that the quality of the shaft increased- if the drill was in a carriage and tracked perfectly in relation to the cutting blades and infeed hole.
I can take some pics of my setup , if it will help you!