I started out using those as well, but switched to harness needles. They last 10 times as long as the others. In fact, I haven't ruined a harness needle, that I can remember, only lost them. I am still using needles from the original package I bought almost a year ago. I was always bending the eyes of the other ones and then they would break.
As an example of their toughness, I accidently bent a harness needle almost double, but straightened it out and have stitched 4 holsters with it since.
Me too. I liked the color and the Tandy guy recommended it, but when I tried to use it, well, it was messy. Wax everywhere. I used about 3 feet of it and it sits in a drawer. Eventually I will try the paper sack method of stripping the wax off and see if I can save it, since it wasn't cheap.