In going over the RCNETH pair, I scanned before the flag to see if there were signs showing potential movement upwards before the flag.
I found what looks to be a double top along with a crossing above the signal line to indicate upwards movement.
Within the pennant itself, it seems that there is what looks like a double top as well, leading me to wonder how often a double top turns into a pole or pennant.
Perhaps a double bottom can turn into a bear flag or pennant?