Ray you have made a key point. I have made a few lowball offers in the past year in the 5-10% range under the asking price. No takers at all… only a small subset even countered.
I have found much more reluctance for lowball offers in the more desireable regions as well. It has been a nogo for my clients in 4S, in La Costa Valley, in RP, RB and Sabre Springs. It did work for my client off of Olivenhain but that took awhile.
As you transition into the more desireable region the psychology/distress level changes rapidly. As Bugs pointed out the mindset is not even close to being where it needs to be, especially in those regions.