ERC, you are correct. I cut off 4 links.
The Tsubaki Omega worked for me, but it is close. It may not work for everyone.
The width has enough clearance for a dry cleaner's shirt cardboard to slide between the chain and casings if you use a rivet head master link. I tried the clip style master link that comes with the chain and it dragged on the cases. It ran through to feed the new chain in, but dragged whether pointing in or out. I had ordered a rivet head link just in case and when crushed/peened down to the same width as the rest of the chain links it clears. Riding seems fine.