thanks led, got some reading to do...
this or another thread with valuable vpd info should be a sticky xray, I agree.
Jackstrat- glad to see you enjoying this data too, not sure to be honest amigo.. I'm new to VPD(almost been a year now) and very very few people I know have the slightest clue about it.
Good stuff. The explanation, in my view, is excellent; just enough geek to sound as impressive as it is and just enough regular folk to be understandable with a little thinking about it. I mean to say that is really good growing knowledge stuff. Stuff we may intuitively know or sense but couldn't readily explain.
Good stuff!