Couple of questions. If your significator card shows up in the final 6 card row does that mean its too far outside of the scope of the spread? Ie. if you determined your unit of time is Weeks, would that suggest resolution is beyond 12 weeks?
Do the final 6 cards have any significance in themselves other than whichever card the significator lands on when dealing out the index pack? Or are you ONLY paying attention to the rest of the cards in the index pack?
This is exactly the sort of feedback I was looking for.
There are a couple of ways I can think of to handle the situation where the significator falls among the last six cards (73 through 78):
Consider that the answer is inconclusive and redo the layout. If it happens again, abandon the divination.
Consider that the time-frame chosen by intuition (in this case, weeks) was the wrong scale (it should have been months). Pick up the last six cards with the significator among them (which will still represent the "index pack"), and use the six cards in Pile #1 as a new "line" showing the first month of the next 12-month period following the 12-week range (quarter) originally targeted (which is now "off the radar"). The apportionment of those six cards would then be approximately 5 days each (30/6), instead of the original 1 day (7/6). (This relaxes the "fine-tuning.").
Since Pile #1 was probably turned face-up in Step #2, deal it out in a line from right-to-left to mirror the way it would have fallen if face-down. (At this point, the rest of the cards in the outer "ring" can be ignored.) Shuffle the "index pack" and proceed as before.
The main purpose of the six-card line is to position the "index card" within a narrower range of the original time-frame; each position is 1/6 of that interval. If the scale is months instead of weeks and the index card lands in the third pile (3 months) at Step #2, each position in the line would show roughly 15 days at Step #4. Where the index card lands in Step #4 would reflect the 2-week window where closure could be expected. If the sixth pile is the "index pack," each of the six final cards would reflect one month (6/6). And so forth.
As to your second question, the 6-card line will consist of six 2-card sets after the "index pack" is dealt out at Step #4. I would read the significator and the card under it as a pair using elemental dignities (focus card and modifier) to show the "quality" of the closure period. I would then read the pairs on either side of the significator pair in the same way, as "run-up" and "follow-up" periods of the same duration (in this case, 5 days on either side). The rest of the cards in the line I would ignore, since timing was the main objective and the rest is just interpretive "gravy."
Thanks for your constructive comments!