I was all set to make three gallons of Bray's 3-day mead, having arrived at a good mixture of honeys, but the store was out of Wyeast 1388. I bought their sweet cider and mead yeast, #4766, and am just making one gallon. It seems to be slower than the 1388; one day later the O.G. is unchanged and I see a pressure level but no bubbles. Is this just a slower yeast? Has anyone had experience with it?