Damn Grunt you got some sharp eyes. It's funny how it's hard to spot things that look totally normal but are switched or backwards! Troubleshooting things that are all hooked up but hooked up wrong is difficult sometimes.
Here is what I do with mine every couple of months. When I get an SLA I wanna use it for a while and see the charge state of it at some point to see if it's staying super 100% charged or not. If it's not 100% all the time then there won't be any chance of it overcharging and blowing up. :] heh