TD Setup perfection – refers to the TD BUY or SELL Setup and not CD.
So in TD Buy Setup the low of bars 8 or 9 should be lower than the low of bar 6 & 7.
Basically, in setup counts, we're looking at 4 bars prior, so chances can be that in b/w bar is higher (which satisfies the previous 4 bar close but is not perfect)
For SELL Perfect, vice versa.
Therefore, 9 consecutive lower lows is a
very perfect BUY Setup
The very isn't stated by TD but my exaggeration
Also note, Setups fail, cancel or recycle.