Most people shoot a heavier poundage bow all their life and come to the place where they may have to drop it down in poundage. I have been just the opposite all my life .I have longer upper arms and shorter muscle mass
I was 2 1/2 pounds when I was born over 60 years ago .I never have had strong arms . So my poundage in bows have been from 36# to 45# .
The arrow weights for my 36# Is at 425 Gr Total arrow weight .I have 150 gr Up front.
My 43 pound bow total arrow weight is 460 gr.With 170 gr. up front.
My 46 pound bow I am developing an arrow for it and it will be 550 with 200 up front.
The one thing that I have learned off of Trad gang ,Is that a lot of people talk about turning the bow. But I have learned more from quite a few people that have pointed me the other direction you tune the arrow to the bow.
I always used to think that the more silencers or different silencers you put on the string is gonna make a difference ,two words takes care of noise from string "Brace height" . You need to start with the bow For your friend and what the arrow lays on is important,Both in height and thickness. The next step is the string ,What is the string made off ,is it the proper amount of strands ,is your nocking point at the right place .Because if all these things are not in order ,I don't care what you do with the arrow,It just won't work .
The other thing you should be concerned about, If your friend appreciates his bow, he needs to have the proper arrow weight so that he's not
"Dry firing" his bow with two light of arrow, YES 348 gr We'll work But overtime is he doing damage to his bow limbs ,Realistically you can never have too heavy of an arrow in your bow, to a point, But I would most definitely suggest to him to increase it by 100 gr. To where it was at least 438gr and 475gr would be better for hunting. He will find he will be more consistent, and it won't be as apt to wind changes. He may have to get rid of his "Compound attitude "
I'm speaking from experience ,Speed is not everything .
Don't take offense just trying to help from what I know .And the guys on here are a great bunch of guys that know a lot. So listen and learn .And also point Him in this direction, get him on here.So that it's not secondhand.
It's better that he does it right ,Then getting frustrated and quitting With the wrong equipment to do the right thing.
Carl