[GeeTwo]

In addition to how tall your robot can reach, it depends on how long it takes you to line up to stack, and how precise your stacks are (do they nest, or sit on top, ready to fall in if jostled). Fast, precise stackers can go six. If you're either fast or precise but not both, probably four or five. If neither, probably two or three. If you can't make nested stacks, you may want to consider stacks that completely change direction so they don't "settle" later on.

We're hoping to get enough speed and precision to score four totes, then top that with two more totes and and RC, at least for the first stack or two. Later, as the cost of a lost stack goes up, we may go down to four. Until/unless you run out of space on the scoring platforms, there's no need to make uncapped stacks tall; they're 2 points per tote at any altitude (below the top of the backstop).