this is what I have found to be true as well.
here is a sample from my first harvest log
WET*DRY weight in grams
45 * 15
3.0 * 0.7
22.7 * 8.1
30.3 * 11
33 * 12
28.4 * 10.2
Approximately a 2/3 ratio, except that wet weight was taken with outer fan leaves and stems still attatched, and dry...