For background, these are the same pens I mentioned here (2 Targas for $15 each at a local vintage market). I've flushed both successfully thanks to your help, and I've inked the matte black 1002 with Waterman Inspired / South Sea Blue. It writes very nicely and is in contention for being one of my favorites - what's holding it back is some occasional skipping (mainly on cheap paper, which I regrettably have to deal with). Because of this skipping, I started looking at the nib more closely, and I noticed that the slits on the two Targas seem a bit... off-center.
You can see it (hopefully) here - the slit doesn't neatly bisect the breather hole.
Likewise, the Targa 1000 has a similar issue (apologies about the lack of focus, but it's hard to convince my iPad to focus on a pen and not the background - any tips? I have no real cameras and no budget for them after pen expenses...
I haven't inked the 1000 yet (I don't have a spare Sheaffer cartridge or converter), so I don't know how it writes. The 1002 normally writes well but sometimes skips badly in certain directions. I'm still working on when exactly it happens, since it's either fine or quite bad.
1) Is the angle in the slit normal?
2) If not, what is its relationship to the skipping?