So, I have been working on some towels for the past few months on my Macomber before I finished restoring it. I wanted to make sire everything worked correctly before I completely finished it.
I kept getting a slightly uneven shed. It is an 8 harness, and I noticed it was only when the last 4 harnesses were raised that those warp threads were slightly lower. I looked up, and sure enough, the last 4 harnesses were hanging lower than my front 4. So, I counted the chain links. They are exactly the same. Same type of chain, same number of links, etc. So I let it sit for a bit, talked it over with my guild, they said just raise those back 4 harnesses up a link if it bothers you. So today, I went to weave a bit, planning to tinker with it. It seems that botha sides are slightly wonky, but the right side is more consistently so.
Also of note. This macomber has had water damage. I got it for about $300, it is a 48" 8 harness. I have no idea how long it had been outside for. We have a very dry climate here usually, and don't get a lot of rain, so I can't imagine it was too long. Everything else on the loom appears to be fine, just the final four shafts not raising properly.
Right harness jacks
Left harness jacks