Interesting! Thanks for looking into this

So, if I understand your video and GitHub correctly, it'll Terry l reject the 1109th signalling block in a given 2016-block difficulty adjustment window

After their "lock-in" height, I guess you reject *any* signalling block? I ask because they start rejecting immediately at the lock in height

So I think that means having a threshold of 1, instead of 1109, from height 961632