I am so frustrated by the huge (I mean HUGE) sink holes in my containers. I read about this in the archives, but there were no hints on preventing these. I have tried just about everything I can think of. I've tried heating the jars different temps, pouring different temps, cooling slowly, cooling VERY slowly. I really like all other aspects of this wax. Since I can buy it locally, I am hell bent on getting it down. Any hints would be appreciated. Thank you!