While we're on the topic of bowstring wax.... What are some of your preferences as to the way you apply the wax? I have heard of using a piece of leather to heat up the string, but I've since read quite a bit about how heat is the enemy of any string or cable.
Here's what I've been doing lately... I apply the wax to the string and cables liberally, then use my fingers to melt the wax and work it into the strands. After that, I take a piece of serving (about 12-15" in length), wrap it around the string a time or two, then pull it down the string while holding it tight. It's amazing how much excess dirty wax comes off the surface. Once I've removed the excess wax, I run my fingers up and down the string once more. It's just enough heat to melt the wax but not enough to compromise the strands.
I saw a youtube video of a guy who used a hair dryer to melt the wax onto the string and cables. I tried it once, and it actually seemed to work extremely well... But since I've read that heat is a bad thing, I'm a little worried that it's a bad idea.