Soldering Question with Mamba Max
 

I want to solder the motor leads directly to the ESC, the supplied ESC wires plus connectors are just way to long for my needs.

My problem is that I can't get the solder to melt on the ESC motor leads, the heat just gets sucked into the ESC and out the heatsink. It comes close to melting but not quite. I've got a weller WLC100 (40W) iron, I've tried both pencil and wedge tips, and it just doesn't seem to be able to deliver enough heat fast enough.

So I'm looking for a more powerful iron and was looking at the Weller SP80L ...

http://www.cooperhandtools.com/brand...c=037103169167

Can anyone who has worked with the Mamba Max please comment what kind of soldering iron they used with it, or if there is something I'm doing wrong.