I am just starting to learn the trade, so please bear with me. On brazing lines vs. soldering, the instructor told me that ALL connections should be brazed using at least 15% silver, if not 45 % silver. However,the book states that it is OK to use 5 % stay-brite silver solder for things like the line dryer since you don't want to expose it to the type of temperature that comes with brazing. Also, it states that it would make the line dryer easier to replace at a later date. I was under the assumption that when changing the line dryer, you normally cut them out?? And with the solder, the the instructor says stay with brazing. Any thoughts from the people who do this everyday?? Thanks for any help you can give.