Performing first clone of iMac, it's going to a USB 2·0 HD. Amazon confirms they have shipped its replacement USB 3·0 interface enclosure, but it's two weeks out since I opted for the cheapest delivery method. Also doing first Time machine backup, to a 3 TB USB 3·0 ext drive. I'm using an in-between* ext HD for storage of large items: it connects via Thunderbolt 3 to Thunderbolt 2 adaptor plus a Thunderbolt 1 to FireWire 800 adaptor.

*In-between as in faster than USB 2·0 but slower than USB 3·0.

iMac startup drive shows its capacity as 1.03 TB, indicating the presence of an extra 32 GB on top of the standard 1 TB. The previous model's SSD portion of the Fusion drive was 24 GB, 32 is better.

I'm not tense, just terribly, terribly ALERT.

With the new screen real estate I no longer need to run the Bartender app.

For what it's worth, the average Geekbench 4 multi-core score for this iMac is 12800-ish. Mine scored 13525.

Weird. Completely lost the dock on the iMac

Looks like it'll take about 90 minutes to transfer the info & settings to the iMac.

@kdfrawg It's all about being pre-paired.

In a nice touch the mouse & keyboard supplied with the new iMac come already paired up.

@kdfrawg Never struck that before. I did buy a MBP in 2009, exactly one week before Snow Leopard came out. Because it was a recent enough purchase, I scored the update for $15.