So I have a solid system down for collecting trap parts. 2-Man with a wiz, go into Ruined halls (Elec), Swiped Signet (Acid) and Hidden Chapel (Acid, Fire). Have the wiz kill everything as you disable, ddoor out, break group, rinse and repeat.
The need for a material component as annoying to get as a soul stone makes the system harder to use, but on Khyber I am going to use my Wiz to keep the AH stocked with cheap strong essences.