I used the coppertreuse this weekend your not kidding hammered them. My wife tried a Neko could not get the nail in lit it with a cigarette lighter for 5 seconds worked perfect. Only bought a few packs to try the medium Turd worm with the tentacles on top was good even in shallow fishing a very light jig head.
Last year I tried the heating the nail with a lighter. It worked well to get the nail in but unless I was able to seal the hole in the end closed the nail still came out on the cast often.