I'll start with the good news...
Now for the "bad".
I thought I had set the league's LTMs to 1940 to offset the HR compression being experienced in this save. A couple days ago I starting thinking the HR total was still way down, checked it against 1940 and yep, a massive shortfall from where it should be at this part of the season. Then checked the LTMs to find the 1924 totals in place. I presume the game automatically applied them on the morning of OD after I'd set them to 1940 a couple days before.
Lesson learned. I was tempted to reapply the 1940 totals there and then but opted out lest I completely hink things up. Next year. There's always next year...