Just in case you're not sick of my ongoing problems with these low temp bodies, I have another curly one . The latest soft paste porcelain recipe is good (I put a picture and the recipe in the 'self glazing cone 04 porcelain' thread a couple of days ago). White, translucent, strong, but it seems to absorb the clear gloss glaze or something. In the photos you can see that some areas have gone glossy and some haven't. The other vitreous earthenware cups that were in the same firing, with the same glaze have come out beautifully as normal (the glaze is a cesco, not sure if you have that brand o/s, it is extremely glossy, and spreads out beautifully for a really smooth finish).
Can anyone tell me what the likely reason for this would be? These vessels had about 3 or 4 coats of glaze, which is usually plenty.