1.5 seems to have more grittiness causing kind of a scratchy feeling in my throat. I need to drink tea or cold water after Spylent to clear it up. If I try to speak directly after drinking 1.5 I have some difficulty. I didn’t experience this with 1.4. The taste is fine.
I’ll try watering it down more and see if that helps.
I use Soylent at work and am talking with customers all day.