I don't know about the pink nail polish on the bullets, but the people I shoot around have only one comment, and that is 'damn you shoot that rig well!' Nickel will NOT scratch your dies, I hate people speculating about that all the time, the flash coating is superthin, and it is not as hard as your dies to start with. As to whether it will dull your cutters or not, I don't really know, but my cutting tools haven't diminished their usefulness in over 12 years of use and I load a lot of NP brass.
I do find it springs back a little more than non-plated, and through experience, I've found it takes a couple seconds longer under the flame when annealing. Just FYI U have a group of 60 cases (308 Win) that has over 33 reloadings, annealed every 3rd or 4th firing, and they are running fine-no flaking of the plating.
I use several different types of brass, and I have my personal favorites, including Lapua,Nosler, and Norma, but I like Win Supreme factory ammo and since it is nickel plated, I load a lot of the fired brass. I find it to be very consistent, and it shoots as well as anything. I actually like the NP stuff, and it is easy to distinguish from other brass if you have a certain load you want to 'segregate'.
Load what you got and treat it as you would regular brass, except for maybe the annealing time, just use common sense and measure it as you go through the sizing operations to see what you get and you'll be fine.
