For what it's worth, baby powder and pure talc are not the same. The baby powder has stuff in it to make the baby smell better, but some of this stuff reacts with some of our hobby stuff. (Note the clever use of hi-tech terminology!) When using a dope and talc filler coat, I use talc. That having been said, if you have experimented with it, and it works with your finishing system, you have answered your own question. Dzl