Well too late now, but for others trying this as well. I strip all the wires about .200" (3/16)) then take a hobby knife and cut about another .2 deep down, but only on one side, then take the two bare sides and align them together. Then put a chunk of heatshrink around that section and clamp(shrink it) them together, to hold them in place. After this kinda mingle the strands of the wires together just a little, then tin them. Tin your deans. Then (as long its not 12 awg wire) lay them flat onto the deans tab, and apply heat. Now i don't use a bec so i don't have 3 wires, but i'm jusre it be easy to squess that little sucker in between the two wires before heatshrinked together,
Now some tips when doing this
-Have a hot iron, and a larg tip. This will insure you get enough heat to the whole bundle.
-Before soldering the wires to deans, heat just the deans tab, and just the wires, let them get nice and warm. Do this with them close togtehr in a set of helping hands, then once they're both warm move the helping hands so they are touching with a little pressure. Apply heat again and there should be alot quicker bond.
- To prevent melted deans have the opposite gender of dean that you are soldering to. It needs to have either a foot or two of wire soldered to each tab, a pair of vice crips clamped on, a chunk of metal connect some how. Then plug it into the deans your soldering to, this will be a heat sink to keep the whole tab getting too hot and cause it melting the deans and getting a bad connection between the battery and esc.
Also a problem i seen above with the 2nd wire being solder a little ways down the line is that it can cause a cold solder joint, so you will experience less power, lower battery run time and possibly even heat coming out of that connection due to the resistance.
Now i'm no expert at soldering, this is just what i have experience of all the times i have soldered my esc's together. So i may be wrong but so far it works good for me :mrgreen: