I've loaded the hex file from http://wiki.cartesianco.com/Nozzle_Test onto the SD card and in the ArC console entering "p NozlTest.hex" and all I get from both silver and ascorbic cartridges, regardless which slot, is a double line about 3 inches long (see pic). I redid the FFC cables and they were fine, I reprimed the cartridges, cleaned them a bit with a kimwipe and alcohol, and got the same double line. I've also re-downloaded the hex and reloaded it using a different computer. None of the pogo pins appear bent or disturbed. Each number is a separate run. I think 3 and 4 are silver and the others ascorbic but it's hard to tell after the heatgun. console says "+File dimensions: 2676 x 0 steps" If it means anything, the reason I'm doing the test is because after printing 6+ layers of the starter circuit, I'm still having high resistance (1k+ in some traces) or no continuity at all. the traces look solid, if a bit fuzzy, but something's not working right. It almost looks like one of them isn't coming out because mine seems much more 'burnt' than others' examples, but the nozzle tests showed both silver and acid doing the same thing regardless of carriage position. The camera makes it look much worse than it is. In reality it is more of a slate-green, or greyish-brown. hard to describe.