I've previously melted lead for a variety of uses, but in this case I used lead shot and epoxy. It helped to warm the epoxy and then it flows better. One small thing to watch for, the tubes need to be held in place in the aileron nose ribs, I used rivets. The rivets need to be checked regularly. The position of them - at least on my build - is such that if a rivet migrated out it could bind the aileron. If the tube were to move laterally this also wouldn't be good. Also, if a rivet loosened, then the lead shot could potentially escape. I did make every effort to mix the epoxy all the way through but no easy way to tell if this was successful. My first attempt at pre-mixing the shot with epoxy, then pouring into the tube, didn't work, it simply wouldn't pour. That said, I've just completed an Annual at 300 hours, and no issues at all.
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Aileron nose ribs
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