Deffinately consider boiling any new traps prior to dipping. Speed dip will adhear some to new oily traps, but a much better coat will stick if you remove the factory oils and give them a nice even coat of surface rust prior to dipping. Boil them for a few minutes and you'll see the oils come to the top, pour that off before removing the traps, so you dont reapply the oil as you pull the traps out through the oilslick. In lieu of boiling, take them to the car wash and give them a high pressure washing. To give them a real quick coat of surface rust, soak them overnight in a bucket of water that you've added a few handfulls of salt to. Hang them to dry and within a couple days you'll see a fine even coat of rust covering them. These guys are dead on with the coleman fuel over gas too. If you don't want to foot the bill for a couple gallons of coleman fuel, I've heard that low odor mineral spirits works very well too from guys at conventions.