mm, i must say that if they have increased the failure rate to induce me to buy more gems, they have failed. I no longer by gems as the chance of the sancta or stars working is less than a snowballs chance in my central heating. I am much more likely to burn notes to keep me warm than /I am to buy stars. I want at least a reasonable chance of success before i waste my money. But I guess we are all different and see things in a different way