Originally Posted by Zanshin
Some ropes are tougher to splice than others, and a doublebraided line that has already been used or put under load can be almost impossible to splice. I found that my big rubber mallet helps a lot, I "tenderize" my line for a bit and then get another millimeter before repeating the process. I have a very thin steel fid to pull the line through, it is thinner than Brion Toss' magic wand and I also thin the core down before pulling it.
Do you know which brand line you are splicing?
I've found that washing the lines in a washing machine will sometimes soften them enough but basically, as Zanshin says, old double braid is not a good bet.
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.