in that case I should mention that mine was Peak Pink Sugar that got the sharp crystals. I cannot recall which FO went all oily and nasty, though.
If I recall correctly, BC won't even discuss it if the stabilizer is used with FOs form other suppliers, and denies there's a problem with theirs as well. And to be fair - apparently some people have been able to use it. I know one and I'll ask her what it works for.