The gallows intrusion, the baseline jumps and multipass

[Anton]

On a separate note, I would suggest that <1,3>,<2.2>,<2,5> in your image above argues against BTT. The lines have clearly been written from top downwards, and the scribe finds the occasional uptick hitting the lines from above. the lines below appear above the lines above.

Not sure which place you mean.

However, I can at once detect some portios written BTT. Here's an example. The olkeedy baseline aspires up in order not no mess with the k in qokaiin below. The qokal follows this new baseline. In the line above, cheol qokear has to be higher than olkeedy qokal. In the line yet above, now chckhey baseline is driven by the text below, and cheor is driven further upwards by k and r in qokear. In the line yet above, qokain has to follow the slope of cheor below.

The stuff to the right of the "red block" has its baseline normalized, and likely is added in a later pass, not sure if top-to-bottom or otherwise.