Tex and Jon- Niftech has a pretty cool little tool for what I was describing. If you are trying to tin bare wires where the wire showing is really short this is the trick...
Also, I/m not sure if it's the same as the Team Much More silver solder, but www.keisub.com
sells the Kester silver solder. I'm not at work so I can't remember if it's 2 or 4 %, but it's supposed to be the best commercially available.
I would also like to add that when you are soldering battery bars as I described on the first page, it's a good idea not to rely on the Dean's clamp to hold the bar to the cell. The truth is that the clamp is just good for holding the bar still. I doesn't put NEAR enough pressure on the bar to hold it flat to the cell. I use my needle nose pliers by holding them in the same hand as my solder. Then, after feeding the solder onto the bar/cell, I just turn my hand and use the pliers to push down fairly hard on the center of the end of the bar to hold it flat and tight against the cell until the solder cools.