Has anyone had any luck adding silicon carbide to glazes.   I found this blog by Jon Britt Silicon Carbide reds which basically says put some silicon carbide 600 in your red reduction glazes and something nice will happen when you fire them in oxidation. Well, I tried this in many different glazes and I got the most bubbly, ugly nasty glazes you can imagine. I used Stephen Hill's firing schedule, which has a couple of long holds.   Back in February Jon promised to disclose the secret. I hav