ORIGINAL: jester_s1
FWIW, the heat of the plug isn't about igniting the fuel better. It's about changing the timing of the ignition. Your best power and reliability will come from getting the timing right, not by putting in the hottest plug.
This is something no one mentions very much. I had a file on how to tune a two stroke at one point that I used to send to people asking about it. Sort of a lost art and one of the few things you can do to a glow engine. Most everyone now has a computer so they can do a search and look these things up. Maybe even do a search on RCU, it has been spoken of a number of times over the years.