The first two ways work. Ive done it this way before too, it worked alright. (do for each ski)
1. clamp down bindings so brakes are out of the way
2. take the hot wax, while at room temp, and rub it on your bases as thick as you want
3. put sheet of aluminum foil over iron with a rubber band, turn iron on and set to correct temperature
4. after iron heats, go like you're ironing a shirt on you bases, fast enuogh to melt the wax evenly, but not so fast it doesnt melt or so slow u burn it.
5. let cool
6. scrape and such stuff to smooth out any imperfections.
-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
If hate were people, I'd be China.