Originally Posted by Bubba
The strength of the fixed loop comes from the bury. The lockes brummel can provide a little strength but the constriction around the bury is what is needed. The primary reason for the locked brummel is to prevent the bury from coming out when the loop is not loaded. You can make a fixed loop without the locked brummel that holds just fine. People do this and then run a few stitches through the bury to prevent it from coming out when not loaded.
Manufacturer's recommendations for the fixed loop bury is somewhere around 6 inches, I can't remember exactly with 2 inches of that being a taper. I have made them shorter but I'd never go less than 4.5 inches. Not surprised that 1 inch did not hold. Glad you did not get hurt.
Actually, the brummel does provide strength. In fact, if you can keep the braid from unraveling, the brummel will support roughly 3/4 of the rating of the line.
A proper locked brummel splice requires 1 less fid length of bury than a normal stitched splice, which uses 3 fids.