I’m the OP and the confusion here is likely my fault, sorry.
I failed with the 2020s ($1500 incentive) and then tried a few 2019s ($5500 incentives) and mixed the 2019s into this thread…
Current status on my 2019 attempt: 0 for 4. I tried 2 dealers with 16% off before incentives, then 2 dealers with 12% off before incentives. So far, total fail.