Gibby... I just took four out of the package and layed them aside real straight for a day or 2. It really doesn't matter that they are super straight when you make the mold though. When you de-mold the baits after you pour them, just lay them straight. They will be fine!!!
No need to coat the original worm with anything, the plaster will not stick to it.
Tips on the plaster are...Use luke warm water...not cold and not hot. Be sure to add the plaster to the water and then stir. Never add the water to the plaster. Once you make your cup of plaster, bounce it on the counter or table a few times, the bubbles will rise out. pour the amount you need into your container and bounce that again on the counter or table. more bubbles will rise out. Some bubbles are going to be there regardless but you can fill them later with a drop or two of plaster or with whatever you are coating your mold with.
I think I bought the IKE heads at tacklewarehouse.com... Several places carry them. I have heard some guys complain that the wire is to light in the hooks but so far, so good for me.
I used Calhoun's super soft on mine and they swim perfect, never roll or twist!!
Jim