Hi,
You may find this useful:
http://www.sprucenubblefarm.com/chondros/greentreepythoncaresheet_localitytypes.php
Mainland (sorong, jaya, etc) = about 4 ft = small
Aru = about 5 = medium
Biak = about 6 = large
Personally the biaks are agressive hunters (glass strikers) but I have found them to be just as handelable as antyhing esle. Sorongs have the rep for calm and handleable
Like all things GTP your milage will vary dramatically - every snake is a true individual.
Ross
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Spruce Nubble Farm, Inc. - Green Tree Pythons, Carpet Pythons, Carpondros, Kinkajous, Horses
http://www.SpruceNubbleFarm.com
69 Spruce Nubble Road
Strong, ME 04983
(207)-684-3539
eFax: (512)-853-3820