Diamond Kote D-K 9000 Rustproofing Module
 

Has anyone used one of the new generation DiamondKote D K 9000 Rustproofing Modules. Theses are apparently new and improved over the old capacitive discharge units of earlier times. The technology seems quite improved and there Are quite a number of dealerships selling them now. Just wondered if anyone has tried one and had it long enough to see any results.
Dee