Okay, so I just bought my rx8 gen 2 and a track power 850 iron. I saw ticks video on rc network and it came out real nice and went really quick. The only difference is I'm using radioshack thin 60/40 solder. I got everything pre tinned and I'm on to attaching the wires to the posts. My problem is I can't get the wire to melt in with the solder on the post. I'm afraid of ruing the esc with to much heat, what temp do u guys recommend setting my iron to and how long can I safely hold it there. I have a feeling this radioshack solder is junk.