The key to getting silver solder on to a small area, getting hot enough to melt the solder into the joint of the ring. If you get the ring to hot and spread the heat through out the ring the solder just flows all over the ring and does not solder correctly. Also if you get the ring solder to hot, the solder will crystallize and become brittle thus breaking easily at the joint. A butane torch is more then enough to heat the sweet spot on the ring. It is not like soldering copper pipe where you have to get both pieces hot enough and maintain the heat to flow around and into the joint of the pipe. Believe me this is not brain surgery. Solder a ring and try to twist it and break the solder at the joint, try to pull it apart, if it breaks it was not soldered correctly, I did this time and time again until I got it right. Oh and by the way the ring kits are back in stock at Surfaceiron.com. If you have any questions or want a lesson on how to solder rings, I will be happy to show you how. Just send me a message.