Mary K
Henry, after following you for many years, I encourage you to continue to follow where your gut leads you. Time & again I’ve watched you “see” what the machines and programs miss because they cannot “reason” like you can, nor do they have experience (not just historical data) to unsnarl seemingly conflicting data.
I see the 540 line showing up in northern MI and NY. Normally you would draw attention to that. Why not now?