Here's the latest report.
The pen (Baoer 508) was left capped and nib down in a pen holder for somewhere between 7 and 9 hours. I tried to maintain the C/C and section vertical during the entire test so that gold was not mixed at all.
Inspection of the converter revealed gold settling at the bottom. This was no surprise as you can see it happen in less than 2 minutes after shaking the bottle of ink mix. The picture below is difficult to see as the amount of powder relative to the C/C size is pretty small. Gold residue can also be seen around the piston, which I had not noticed initially.
Quite a bit of gold settling can be seen on the thingamabob that connects the converter to the feed also. Despite a lot of buildup, the tube looks unobstructed.
Initial writing was dry (for this pen) - something along the lines of a Lamy Safari's dryness. Stingy ink flow, but no skipping issues. It was wet enough for some nice shading. The gold distribution was surprisingly even. I had expected the feed to become heavily saturated with gold powder. My suspicion is that the gold settles onto the fins of the feed and gets caught without a steady flow of ink. This could be exacerbated by the pen's tendency to dry out quickly, but only an examination of the feed will reveal this theory.
The text to the right of the page are also nicely flecked with gold, but the camera only captures a small portion of sheen relative to the low lighting at this time of day.
Standard practice for this pen is to saturate the feed to start it up. The pen wrote very wet, as normal, after flooding it and then backing off the C/C. This yielded a very, very heavy saturation of gold powder which was expected. Held at the right angle relative to the light, the writing looks completely gold.
The only surprise here was that the nib "swab" was not quite as saturated. Perhaps the back and forth motion just distributed the gold more evenly across a much broader surface than standard writing.
Lastly, this is a picture of the feed after being saturated. Lots of gold near the breather hole. My experience is that it wipes off pretty easily, but will stay there if not wiped. It will smear onto your fingers when touched.
The pen is now uncapped and nib down. Further testing tomorrow. Any other ideas? Let me know.
Edited by TheRealScubaSteve, 09 November 2014 - 23:10.