Many will disagree with this, but IMHO the "best" way to anneal cases is with the "candle" method. You simply hold the case by the web, between your fingers, spin the neck & shoulder in a candle flame until the web gets too hot to hold, then quench. This gets the neck & shoulder as hot as it needs to be, while not overheating the web.
I neck size with a Lee Hand Press, so I can "feel" when the cases start to work harden & when they are properly softened useing this method.
Since useing this method, I have reloaded some Remington brass 19 times before case failure. They failed because the primer pockets started to get loose. I have lost some cases because of web failure, due to a "sloppy" chamber that required the cases to be full length sized too often, causing them to be overworked. But since starting to use this method, I have never lost a case due to neck or shoulder failure. Good Luck-Good Shooting- Jim