What do you mean? I can't go back and decarb what I already have. You mean make a scaled down version of my big batch of butter, to see if it works differently?
Maybe it's not fully decarbed, maybe it is. The point I'm trying to make is that maybe in a slow cooker, decarboxylation is not as important as we might think. There are plenty of people like me, I'm sure, who start their butter only to realize they did not decarb first. I'm here to say, mine came out fantastic with no initial decarb, and if you cook yours for a long time, it too will probably come out just fine. Make of that what you will, as this is all anecdotal, and there is nothing for me to cite exept mine, and others experiences with my finished product.