Hello! I have been so anxious to start weaving turned twill and using my full 8 harnesses on my Spring 2. Unfortunately when I started weaving I noticed I was getting skipped threads that are threaded on shafts 5,6,7,8. The shed doesn't lay close to the shuttle race and that's where I'm snagging extra threads.

What I'm seeing when I step on a treadle it's the upper lamms that aren't sinking enough to rest on the shuttle race.

My Spring has happily woven 4 harness projects without any need to change the beater height and it seems like this started after tying up the other 4 shafts. I double checked the shaft and lamm measurements on Louet's website and my loom is correct. Is it strange that I'd need to change the beater height using 8 shafts if it was fine using 4 shafts?
If anyone has insight I'd be so grateful. In the meantime I've contacted Louet's Zendesk.