I'm fletching for the first time and I heard that,to find the heavy side of the carbon arrow is to plug both ends and float them in water and the side that stays upright is the heavy side is that true?And is there any other way to figure that out? Or does that matter?

I have never done that when I fletch them I just throw them in the jig the way the nocks are on them when I get 'em. May not be the correct way but I have never heard of doing that and have never had a problem with the way I do them.

I have never heard of doing that. What does it accomplish? I am curious.

Remember that gravity almost always wins. When you float something that is relatively symetrical, like an arrow shaft, the lighter side will be up. This is one reason that some boats have weighted keels.

The Mouse

I made a mistake it suppose to be the light side up ,not thinking right.That's where you put the cock vane on the light side.somebody told me when they were shooting and the arrows were landing to the left and some were landing to the right,he would turn the nocks till all of them were flying perfect then thats when they did the float test and found out that the cock vane was the side that was upright.so IMO there's something there to look into.what do you think.

Flinger,

You can usually find the spine on a carbon by bending it slightly and rolling it over your thigh. You should feel a definite "bump" as you roll over the stiff spot where the fibers are overlapped. That is your stiff side.

I have always heard that you want to align the stiff side so that you get the following results:
Stiff side up or down for release shooters.
Stiff side in or out for finger shooters.

The reason for this is that finger shooter's arrows occilate left/right. Release shooter's arrows occilate up/down.

My $.02.

_________
SuperX

Thanks for the info.