9" is a little long for the fixed eye unless you're using larger line. I am comfortable with 9"-10" for the adjustable part, even though others have used less.. Amsteel is less than 40 cents per foot, no sense in cutting corners.
For a straight bury that needs to be stitched or whipped for low/no load condtions. ( No de-rating of the line.)
For the fixed end, you bury 3 fid lengths of the tail/working part in 3-1/2 fid lengths of standing part. The reason for the diffenence is the standing part gets a little shorter becuase it spreads out/fattens up when the buried portion is inserted. A fid length is 21 diameters. I usually use 72 diameters (which is about 3.5 fid lengths) for the buried portion because that's the way I was taught. I think this is becuase the math is a little easier for larger line unless you are using an actual fid. Ex. 7/64 buries 7" in 7-7/8"
For the locked brummell that does not require stitching for low/no load conditions. (derate to 60%BS according to Samson 2008, but more recently about 80%)
You can shorten it up some. It goes to 2 fid lengths buried in a little over fid lengths. I usually eyeball an extra inch. Ex 2 fid lenths buried in 2 fid lengths + 1 inch. It sucks up inside anyway.
If your using 7/64, a fid length is 2-1/3 inches.
If your using 1/8, a fid length is 2-2/3 inches.
I frequently use whatever needle I'm using as a "fid length" as long as it's longer than the real fid length for the line I'm using. For example, most doll needles/upholstery needles/darning needles and other "non typical" splicing tools are 3" or longer, so I just use what I have in hand as the measuring device of a fid length since its' longer than neccessary.
Last edited by nacra533; 09-08-2010 at 22:39..
Reason: inches instead of feet