Is the base just a simple oil/sugar base? As in, the sugar tends to settle to the bottom, and there's a thin layer of oil on top without any sugar in it, or is it equally dispered throughout? If it's non-emulsified, I can see it being difficult to get the right ratio of oils to sugar for individual batches. And seriously, if it's just the oils/sugar, it's so easy to make it's not funny- it's literally sugar, your choice of oils (even just one straight oil without mixing works great), preservative and FO or EO. That's it. It's almost like highway robbery that people sell bases of it...but then again, I think it's highway robbery that people buy my non-emulsified sugar scrub (I do both emuls and non-emuls). Man, I just ramble lately....