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Hi, Hope this hasn't been asked anywhere else and I'm repeating a question but I've scoured the internet and can't find much of help... Even though I have studied ceramics at 2 levels, during neither course were we taught about firing schedules... Over the past few years I've been using and tweaking schedules given to me by an amateur potter friend but they aren't cutting it anymore. I've recently been approached by 2 shops/galleries who want to sell my work but glaze faults are making it difficult for me to be happy with results as I can't seem to avoid miniature pinholing and am wondering if the firing schedule is the problem. I have a nabertherm top loader, and the control panel allows 5 time segments. 1. Delay 2. Ramp One 3. Ramp Two 4. Soak 5. Cooling. Currently I fire 80oc an hour for 10 hours, 100oC for 2 hours (reaching 1000oC), 15minute soak, and finish for bisque. For glost I use 150oC an hour for 5 hours, 100oC an hour for 4.5 hours (reaching 1200oC), 15min soak, and off. From reading around online I now wonder if these schedules may be too fast? Or may it be something as simple as needing elements replaced? (Although an electrician has tested them and said they're in good working order). Any advice or suggested schedules would be greatly appreciated. Thank you. P.S. I have tried multiple clay bodies so don't believe that clay is an issue. I also use an extraction fan so I don't think it is a buildup of gases within the kiln chamber either. The glazes I use are commercial and mixed by the manufacturers instructions including sieving before use.