Didn't use the banks but did install a PacBrake in my 2004.5 with the NV5600. Loved it especially when hauling my 13,000# fifth wheel. My father also installed one in his 2004.5 with the NV5600 and used it for hauling his 15,000# fifth wheel. Install was real easy with the hardest part being running the wire for the on/off switch mounted on the stick.
By going through the gears, could start slowing down just before an off ramp and be down to 20mph before hitting the end.
After 150,000 miles of which probably had 60,000 miles of hauling, my front brakes still had at least 50% pad left.
