I have just opened a new (for me) bag of clay, Laguna B3 Brown. A little late in the day I decided to check the clay's characteristics and found that it has what seems to be a high COE - 7.25 x 10-6. Is this likely to create any problems when glazing? Mostly in the past I have used the Laguna cone 5 B mix and B mix with grog. Thanks for being there. Joan.