I run my 4Bars on the same address. You can rotate one of the 4bars and flip the lamps around so #1 is same on both sides of stage. (I prefer side lighting, doesn't wash out faces and such)....
Wireless is the way to go.... My laights are Chauvet D-fi USB stuff so I use the D-fu USB dongles..with a couple of spares... I hate surprises.....
There are so many options for relatively cheap lighting nowadays... I think it would be cool to have some wireless fixtures in different odd places in the club for occasional chases...
Flipping the lights round on the four bar: that's absolute genius. I spent ages reconfiguring the settings in my controller to achieve that.