Time to pick your brains.

[rwarrich]

Okay gentlemen, I have some questions that I hope you can answer for me.  Here are the info on my bow, it is a 72 inch hickory longbow with a built-out grip and a shelf that was cut slightly past center but now is built out some.  It is 52 lbs @ 29 inches, which is also my draw length.   I have a Flemish string of Darcon and shoot wood arrows with 3 - 5 inch feathers which I generally cut about 29 1/2 inches long.  I shoot with 3 fingers under.


First, where should the arrow rest be located on a longbow with a shelf?  Should it be at the front, middle or back of the riser/grip/shelf?

Second, what is a recemmended total arrow weight for hunting WI whitetail deer?

Third, if I shorten my arrow length by a inch and add a wood screw adapter(60 grains), how will it affect the spine of my arrow?

And
Forth, how much of a change of tip weight does it take to affect spine.

I know that I have asked a lot of questions, now and in the past, but I have very limited, tight  finances and can't just buy more shafts/points/broadheads and try them.  I need to determine as close as I can to what I need before making purchases.

[kadbow]

1. Don't know about the arrow rest.
2. 9-10 grains per pound will be fine for whitetail, heavier is also fine. (450-520+ total arrow wt.)
3. Shortening the arrow length will stiffen the spine but adding weight to the tip will weaken spine, it may be a wash.  You may just have to try it on an arrow.
4.  Any change in tip wt will affect spine, it just depends on where your arrow is within its "operating range" as to whether you see changes in flight.  If you are on the edge with spine it doesn't take much to make the arrow fly bad (or good).

I am sure somebody on here has experience with the screw on adaptors for woods.  Good luck.

[vermonster13]

1. The arrow should rest over the pivot point of the bow(the spot you measure brace from) on a properly designed bow.

2. Depends on the bow and what it is designed for. The grains per pound is more to reduce wasted energy than what is needed to kill a deer. Shoot the arrows that fly true and quietly from your bow and most any arrow with a sharp broadhead in the boiler room will kill a whitetail.

3. Depends on how heavy the adapter is.

4. 1 grain will change spine, what you need to find is how many grains effect enough to affect flight from your bow.