Stopped this concurrent validate/confirm run at ~50% of the chain by txs, 630k blocks validated and 570k confirmed, at 2.2 hours. So if download is completed first (60 mins), this run is projecting a ~5.4 hour completion. I suspect this will break 5 hours with concurrent download, will tray that a little later. First gonna graph this out and also fire it up on the mini to see the impact on thrashing.