Have an SP80L also - use it for building pacs (or used to with NiMh, using it with a123s now). With the gun I can have bullets or a deans soldered and put away while the SP80L is still cooling. The small gun tip cools off very quickly. I use a Panavise to hold the conns while I work so it can just sit and cool.

I wear the left glove of a pr of mechanics insulated gloves and use that to hold the wire. I can get up to within an inch of the end and its just starting to get warm when I see the joint set. Glove is also useful for heat shrinking - can keep the shrink down where I want it while heating with the heat gun - gets only warm.

Mini torch had my novak solder on fire in the 6.5s. Liquid silver is just a click away with a torch.

I like to use a mini-torch. It makes installing these big connectors a snap.