Was wondering. This dude who I don't know made plenty of sodium Ghb, and found a good measurement that was good. He finally got ahold of some potassium hydroxide and made GHB with that, according to the measurements online (roughly without a scale).
He noticed first off, that it took a lot longer for the GBL smell to dissipate than with making Sodium. Second, he noticed that when he poured it in the pyrex dish, after the water was boiled out, that it didn't immediately harden like the sodium GHB does. It took longer to harden and needed the assistance of the freezer, and swapping it in and out to keep it hard, cause it absorbed moisture way too fast compared to the sodium version.
After it was dry, he weighed it out to roughly 170 grams, and then added the same amount of water in milliliters like he does with GHB.
The stuff tasted like hell. It is a cross between the scrapings of a banana peel at first, and then it tasted as if it would get sweet, but right about then a sharp nasty overbearing salty taste makes it just suck. But mixed with water, it smells less than sodium ghb, which always has smelled like rotting ocean water.
Usually, this dude takes less than 5 milliliters of sodium ghb, and then gets some effects. He switched to potassium, cause at the rate he was doing it, he could tell the salt would make him get a hard heart beat in his neck and a really shitty feeling after weeks of using. At first it was just fine though.
He takes 7.5 milliliters of the Koh-Ghb (potassium) however, mixed the same as the sodium he always has made. It not only takes longer to come on, but he hardly feels it, even at this high of a dose.