Johnny,
To give you an idea.........I shot that thing with 31.5" Gt 5575 Traditional XT'sand 165grs of tip weight at almost 62# (145head and 20grs of insert weight plus the insert itself, and GT Nock adapters and Bohning signature nocks out back)

Most likely you'll be looking 3555 like was mentioned. If you can stretch your arms a bit and horse that puppy back to a little over 30" I know it likes those!! In fact I don't think I ever saw a bare shaft fly so nice. LOL

See if the guy has any bare shafts you can play around with. That will tell you about everything you need to know.