Hi----I think for the most part these snakes are non aggressive. I have 4 solomons and they all have a great demeanor. Alot of these animals being offered are wild caught still and maybe the stress of captivity causes this. I think the candoia aspera (viper boa) of this family tend to give the others some bad ink. The vipers tend to be a little aggresive. For more info you can check out my site- Pacific Island Boas. Kingsnake can link you to it thru thier "mailing lists" section. You can also access Jerry Conways SIGB site thru Kingsnake under their "caresheets" section. Hope this helps
Randy
http://groups.yahoo.com/group/pacificislandboas