Pull-Pull Wire source
I found some crimps by the leader spools too... but they seemed too big for what I wanted... I like the ones that come with the DuBro Kit.... But when I run out of those or are re-rigging my pull-pull, I use some small diam. aluminum tubing. Works great.
I've seen bulk pack riggers from DuBro... but of cource they're not cheap... I'll check with DuBro for bulk riggers.