*Answer by CFTraveler

1. It’s not uncommon. Some places are more sensitive than others, for me, the palms and the feet are strong, while I barely feel anything in the abdominal areas.

2. It’s not something I’ve thought too much about, but the more clear things get the less sensation, depending on how strong they were before.

3. I did 5-10min per section, it could be more, but if you’re bored doing it it’s too long.

3b: I do brushing-sponging starting with feet, legs, torso (as a whole, not the actual main chakras) arms, neck & head, then I do full-body circuits and other stuff like color breathing, but never more than an hour. I know that at times he’s said “The longer the better”, but I think that it’s situation-specific, not really for everyone at all times.