Are the fine folks at PinGraffix on Pinside? Their website says they turn around support requests in a day, but it's been nearly 10 with crickets.
I picked up a heavily modded MET Pro and wasn't until I opened the cabinet for a minor slingshot adjustment that I realized the awesome side art was actually an illuminated pair of powerblades! (They've never worked).
I found a blown fuse (not sure why they used unobtainable 1A blade fuses instead of standard pinball fuses. 1A is too low current for the automotive stores to carry them). But it looks like the fuse below because the EL inverter is shot. Would love to see these things work and maybe pick up a pair for my LOTR.