WOW always had great service from them just picked up the phone and called them directly to get what I needed. I have used both Morimoto ballasts and Philips from them. The original Morimoto has held up great after 6+ years of use with no issues. The second Morimoto kit I got was a newer version and the ballasts were crap when cold and replaced them with the new ballast design under the 5 year warranty when only 1-2 years old. The third set of Morimoto have been great so far and fire up even faster than the old versions and only 2-3 months of use. The Philips are great and have used them for 4 years now with no issues. I do like the output of the Minis but they need to be setup correctly for best use. I'm using the FX-Rs now and I really like the light output. I have one projector that is off in it's crisp cutoff but gives a great flicker so it's kinda a trade off. Will tweak it eventually when I want to open the lights back up.
I wish I could help you on the truck but I would trade the harness, ballasts, and bulbs for a new set and see what happens. Have you tried bench testing the system on a power supply to see if you get the same non light fire?