Does anyone know when the Balance and Libra SureLock BC's will be available? Also, are there any retail readers who could advise me on the diffrence of fit between a small Balance and a small Libra. I've visited SeaQuest web site which states the waist size is same for both but the "over the shoulder" measurement is a little different: 34-40 for the Libra and 37-43 for the Balance. Would this be an appreciable variance or very similar fit?