I've been using epoxy, but I'm wondering if there is anything that sands better(?)

plastic wood

Minwax Wood Filler....its perfect! No shrink ever!!!! Sands easy and you almost can't even see it once painted!! I swear by it!!

FISH DON'T CARE.

Put the epoxy in and put a piece of tape over it and turn right side up and let cure. But Salty's right the fish don't care and if you are fishing at the right time you won't be able to see it either.

I have actually been experimenting with a new technique...CA glue...you leave the weight recessed, fill the void with thick CA and then give it a shot of flashtac...it cures in 10 seconds or less and doesn't require sanding.

Put the epoxy in and put a piece of tape over it and turn right side up and let cure. But Salty's right the fish don't care and if you are fishing at the right time you won't be able to see it either.

This is a neat trick -- thank you for sharing.

Thanks for the other suggestions, too.

Elmers Wood Filler....works fine for me

No need for any caustic materil. Devcon 2 ton or any other reasonable epoxy is fine. If you work with square ends on. turn your lure. Drill thru and belly. Leave square ends on.a little epoxy in the hole drop in weight for each lure. Then go back amd fill so there a little dome over each weight. Allow ample time to dry. Then do your finish sanding back in the lathe, being sure to pay attention to the marks where your chuck grips or contacts the material. Ie. Don't put it back in backwards it will spin funny.
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Scott baking soda will also get ca type glues to kick off. Sprinkle a tiny tiny amount into an eye hole. Drop in 1 -2 drops of zap or similar CA. press in the eye. You actually see wisps of s.ome from the heat generated :)
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plumbers epoxy
tear off a little hunk , mix it up, put it on

Vic I found some stuff that you can buy from a distributor that is available in all viscosities from runny to super thick, they have a spray accelerator. I originally got some samples and was so impressed with it I've probably gone through 15 oz of it so far.

Did not know you could do that with baking soda-you talking about just plain old Armnhammer stuff?

Don't breathe that "smoke" it's actually vaporized ca glue in tiny droplets and is not good for your lungs. This happens if it flashes too fast with the accelerator. This stuff is probably a slower flash I don't see smoke with it unless there is a very large surface area.

Something else I did that I posted on my site was do nose loops of darters with the thick stuff. I was able to put a wire in the nose of the darter and fill around it with thick CA then flash it, let it sit overnight and in pull tests I actually destroyed the .062 wire trying to rip it out.

I wish people would stop spreading this myth that CA is not waterproof. I asked the engineer that sent me the samples. I'm working on my hazmat certification right now and will be selling/shipping this stuff soon.

I think there's almost endless possibilities for it. It works on lead weights in the bellies, lips, wires, all kinds of stuff.

Scott baking soda will also get ca type glues to kick off. Sprinkle a tiny tiny amount into an eye hole. Drop in 1 -2 drops of zap or similar CA. press in the eye. You actually see wisps of s.ome from the heat generated :)
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bondo works well, it sets up in minutes so you can sand it quick and move on ( but it does smell up the shop )

I used to use 30 minute epoxy or the plumbers putty,
but it is harder than the wood so when I sanded it flush with the plug I always felt I was sanding too much of the wood around it

Bugger yea just reg arm and hammer works agreed dodge those lil wisps of "smoke" as it is CA vapor. between the tape method mentioned and ch#^&#^&#^&#^&#^&g the piece back in should be good to go for basic stuff. Production runs of a few thousand I'm sure are a bit more involved.
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thanks Vic will try that. Wonder if the liquid stuff is a slower version or if it's just baking soda dissolved into something.

i also use plumbers epoxy. no complaints so far.

Thank you again, all. Great information.