ok, a neighbor helped me grind off a bit from the toothbar with his 8" grinder and a torch. I probably could have done this with my 4" angle grinder, but it would have taken longer for sure. It now fits perfectly. I spent just a few minutes trying it out, and hope to do more soon. It appears to be very strong, and I'd recommend it, especially if they are willing to fabricate it 1/8" smaller for BX owners.