Dirty track is my number one operating problem. I was using a Centerline roller and Goo Gone on the roller pad followed with one of those Walthers box cars with the pad on the bottom. I currently have a Miniatronics electronic cleaner wired in between my DCC control station and the track. I've noticed longer running times between cleanings since the installation but I still have to run my centerline roller (with or without solvent) around now and then (about once a week depending on run times) What are the different methods to clean track? Any suggestions or is this as good as it gets?