As this stacks up at the moment if there are 40 rows, front is 1-6 rows, middle is 7-27, back is 28-40.
30 rows, front is 1-5 rows, middle is 6-21, back is 22-30.
It’s a useful poll, but it’d be much more helpful if the sample size were bigger - currently it’s under 2% of a 3k allocation. However, as you predicted, “middle” is winning, though perhaps not by as large a margin as you’d have expected?