Made a gallon of JAO about four hours ago that I modified with half a pack of Lalvin 71B-1122 that I had from last year.The yeast was out of date,but it re-hydrated well.Also,the temperature has been about 65 degrees today due to the rain.Anyway,all the other batches of mead that I have started before were rocking and rolling in a few hours regardless of yeasts used,but they were also pitched at higher temps.The airlock is bubbling,but very slowly.Should I try a warmer spot?Did I mess up by using old yeasts and only half a pack?If the problem is the yeast,I have a pack of 47D.Can I add it,or do I need to put a camden tablet in to kill the 71B first?Yea,I know I broke the rules with JAO,but was looking for a good result without the nasty lees left by bread yeast.