Background: 7mo CLF--Strong OB--Holds well
I have been FF'ing Tuesday for close to two months, during that time frame we have been through ~30 15 min sessions. Eye level at all distances she will fetch the bumper out of my hand, but she is slow to fetch, not much "pep." Light, moderate and higher levels of stimulus (ear pinch) have no effect on her speed to the bumper at any distance.
To test her understanding of the "fetch" command, I lowered 2-3'' below her mouth and she will lower her head to get it. This confirms that she understands the command.
Her demeanor is upbeat throughout the session and we finish with hold/heel.