I am trying to decide how much to spend on carbon arrows. I've been looking at Gold Tip. I want an arrow for hunting. With my current shooting ability I've got decent groups out to 40yds and for hunting situations I feel that 30yds is a good max range for me provided I am confident of the distance and have a perfect shot oppertunity. I really have no desire nor think it wise to attempt to take deer beyond this distance. Currently I'm shooting the cheapest gold tips and practice shots out to 50yds. Naturally my groupings increase from longer distances but I'd like to eliminate arrow straightness as a significant factor. For what I'm looking for is it worth getting a straighter arrow? Does anyone have information on any studies comparing groups of arrows shot with tolerances of .007 vs .001 etc?