OK, so I have a Union 2 shaft ( I think it's what you call a countermarche) loom that I use to make all my rugs.
My aunt has a loom that (she has personally never used - bought second hand) that she would sell me. It is a Nilus LeClerc 4 shaft JACK loom...
What are the pros and cons of Jack looms in regards to rag rugs?