I got a little stupid with the sawzall yesterday.
Was on the wrong side when I was cutting it. My "goal" was to cut it below the hub, sweat off the brass and reconnect with a mission no hub coupling.
Knowing what happened, and knowing that
1. Can't touch those joists...
I use the fast set glue, bright green cans of glue from Oatey.
It's a pain to use the slower setting glue...I simply just do not need that "time" to rethink a connection.
Temperatures play a heavy role in those slower setting glues as well.