HiI made faux sea water to try making ZNSC recipe soon. Although, technically it should probably be labeled as ZNSB (Bastille) since I plan on using a little bit of coconut and castor that is listed as an option in the original thread. The question is to swirl or not to swirl because I'm not sure how fast it will move with salt water in it.
I just made it the other day, I added 10%coconut and 5% castor oil. I didn't find the salt water accelerated that much. I made it unscented, not sure if EO or FO you're using.
You should be fine if you don't let it reach a thick trace and be prepared