Maybe I need to dry mine first. I let them set out for a few days and I live where it is very dry so I figured that was good enough.
One thing I have noticed on BYC is that many folks (myself included) try to draw conclusions based upon others' experience. Hard to really do well in many cases. We all have different breeds (even different genetics within a "breed" such as EE, BA, etc) but most importantly we live in different climes. Just because it is dry where both you and I live doesn't mean we have the same soil, macro- and micro-biology, etc. Why do some birds prefer certain things and someone else's birds have different preferences? My hunch is that it's an untangle-able mystery of genetics, climate/environment, feed and whatever else you can imagine.
I don't say this to dissuade us all from comparing notes, but as a matter of perspective when "our" birds do not behave like "everyone else's"!