How does that work with upgrades for Endless? Because the top run for Farm Endless has Grill Upgrade 1, and I don't think the Diner even has an upgrade screen to verify.

So either all Endless runs should have to show a new game being started first or just allow upgrades and backpack items for faster times and more interesting routing (like taking big coffees in and some precooked patties). Or maybe have a separate category for that but there aren't enough runners to really justify it.

It seems that in endless you can store items in your backpack then start a new endless and those items will be remain across runs, effectively letting you precook food and use in a future run. Does this fall under the Persistent Items restriction, or is that only for the apartment items?