These are the Basic Rules for NERS (Nocona's Early Retirement System):
When the CCI is above the +100 you are holding long. When it drops below the +100 you are out of the long and short.
When the CCI is below the -100 you are holding short. When it rises above the -100 you cover the short and go long.
The tricky part happens when the CCI will not reach the opposite 100 line. How to handle when (1) the CCI will not break the zero line at all (2) the CCI breaks the zero line but then soon goes back in the other direction (3) the CCI breaks the zero line and holds there for awhile but without breaking the 100 line. These situations have been the subject of discussion between Nocona and I which you can read about in past posts. The one thing Nocona and I agree on is in situation #2 - If the CCI breaks the zero line, but then crosses it again, you close your position and enter the opposite position. (If short, go long; If long, go short.)
If the CCI goes to a HFE (hook from extreme) beyond the 200 line, Nocona will use the break back of the 200 line as an entry, just like the 100 line.
What CCI to use? The idea started with the 60 min chart using a 12 CCI, but Nocona was entering mid bar and not waiting the whole hour for the bar to close. So it then seemed reasonable to move to a shorter time frame chart with a longer (but equivalent) CCI. So:
60 min 12 CCI is equivalent to:
30 min 24 CCI
15 min 48 CCI
10 min 72 CCI
5 min 144 CCI
The 5 min 144 CCI can be very whippy and is not advised to be used alone without consultation of a longer time frame chart.
I think that about covers it.