Originally Posted by
unterhausen
use more flux if there are cameramen lurking about, that's all I can say

Note that there is no visible carbon on the over-fluxed seat tube
Ok...Here are some pics. Be easy on me, still learning.

I'm still trying to find a happy place for heat. This morning I tried less heat but noticed more of that carbon precipitation developed because I spent more time trying to heat up the area.. This was not evident on previous tubes when I turned the heat up more. It still cleans up fairly well, I just spend more time with a file.