Comb honey production and the Killion T super and a question.

[David McLeod]

Never done comb honey so I re read Honey in the Comb by Killion. Now I have a question on his T super.
Specifically, page 19 fig 12 and pg 28 fig 24 shows my quandary. Why use a super only 14" wide? This is exactly 2 1/4" less than a standard super. It can't be because an additional row of sections will not fit since a section is 1 7/8" wide. It doesn't add up that the 3/8" "slop" could be the issue since that can easily be made up either with a thicker separator on each side or by using thicker stock for the super side walls.
So why is it?

[Michael Bush]

Killion ran all ten frame brood boxes and eight frame supers.  It's an eight frame box.  It's because you want to crowd the bees up into the supers, I suppose, but the other thing is they tend to fill an eight frame box out and they tend to skip the outside frames in a ten frame box.

[David McLeod]

Thank you. That stands to reason.