Thanks everyone, I'm definitely thinking its an air pocket. It burned down in about 3 seconds once it hit a certain point. I'm going to put these jars aside for now till I can figure out what is causing that. I hate to pick on soy but I think it might have something to do with the soy portion of the blend, but who knows...lol @HorsecentS...it was a 44-32-18, these worked best, especially in the second half of the burn. I just measured again and I'm getting a 2.5" diameter. Oh well, just another crazy day in the world of wax...lol