Expert Salvage Kit

I just purchased an expert salvage kit, and I would like to know what items I should use it on, because I tried a few and I didn't get anything more than what I would get with just a regular salvage kit...Can you just post a few items that it can be used on, that salvage rarer items?

gold purple blue items

edit

http://www.guildwarsguru.com/content...ars-id1059.php

Getting rare crafting items, or sometimes certian upgrade components is soely based on chance. Some items will never give any but a common crafting item, so using an expert salvage kits, is basically useless. Currently the best salvage guide out there is found on the Prima's guide.