Read rule 188.8.131.52:
A Gray TOTE is scored if it is fully supported by a SCORING PLATFORM and no portion of the TOTE extends above the top of the
Unless you’re opening the lids on the totes so you can nest them (and that’s right out according to the blue box below G16), any stack height above six is worth nothing extra.
Even though we have a “bottom stacker”, we’ve tried to make our design as tall as possible, with the idea that if it should prove too unstable during driver practice (or early rounds), we can tone it down, while we can not exceed the design at the last minute. As long as we have RCs available, we currently expect to make a 4 or 5 tote stack, score it, then add one or two totes on top with an RC (and possibly litter) to score the big points. Unless you’ve come up with some whiz-bang way to stabilize the stack (and especially the RC), trying to “bottom stack” six totes with an RC on top while staying under 78" sounds like an exercise in futility.