I cannot remember what book this came from, might have been from "The Witchery of Archery" by Will and Maurice Thompson. But a Native American friend stated a bow was just a stick and string but a good arrow was a lot of work. It takes time and experimentation to get the right shaft for gyour arrows. The longer the shaft the weaker the spine of the arrow. When you add in weight of the point if further weakens the spine. You need to decide if you want to shoot a heavy arrow or not. Heavy arrows penetrate better but flight dies off faster. A moose arrow really should be heavier than one you will use on a deer as there are heavy bones and more tissue to get through. Conversely lighter arrows have a flatter trajectory but do not penetrate as well. The biggest factor is often what animal you are hunting. This is not to say you can't use one weight for all, it is just personal preference. I would start off getting good flight with bare shaft tuning and go from there. Check out Tradgang.com. You can spend many hours just reading all the information these guys put out. Great place to learn!
I shoot a 58# recurve at my draw length of 27" my arrows are 29" long, 3 fletched, and have 125 grain field points for practice and 125 gr. Magnus broadheads for hunting. The weight is around 475-500 gr. can't remember exactly, been a long day. I get great flight with these and have 2" of arrow sticking out.
My hunting buddy shoots a 85# recurve at a 26" draw length using Goldtip big game arrows full length, 250 gr. points with additional weights for about 625+\- gr. Wt.. This gets awesome penetration and he routinely kicks my butt on the 3D range
Start with recommended spine weight and adjust as you need.
Oh BTW, you can buy shaft testing kits from 3Rivers Archery.
Good shooting,
Steve