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Agree with the toothpick. Most all of my chipping came from using hemos.
I have not had problem with chipping paint since I put heat shrink tubing on both jaws of my hemos, less line damage also.
Out of all my jigs I have. The Fiskas I just got in the mail seem way more durable than anything ive tried. They have some sort of rock-hard epoxy coating over the paint and every single eye is paint-free.
Fiskas are, IMO, the best tungsten jigs available today. Very consistent in quality. I keep the 30+ I own in an aluminum Perrine #69 fly box. It has 30 metal clips on one side and a magnet sheet on the other. I have had zero paint chip from removing them from the metal clips. Floating them under a float in the summer and banging them against rocks is another story though. They might be ~$3 a piece, but it's very much worth it. Also, a cheaper alternative to the UV fly resin is Sally Hansen's Hard As Nails. Cheap and incredibly durable. It's for fingernails but is an awesome head cement and would work great for coating cheaper jigs. You will enjoy your Fiskas.