Originally Posted by beergutbrew
ajdelange, do you recommend postboil/boil additions? Last week was the first time
I don't do them so I don't recommend them but that doesn't mean that I am recommending that you don't do them. If they improve your beer then you should certainly do them and many brewers do. Adding additional calcium salts can lower kettle pH, for example, as, obviously, does adding acid to the kettle. If you wanted lots of sulfate for some reason but were afraid that the extra calcium might drag mash pH too low you could withhold some of the gypsum for the boil.
As I have no experience I can't give any advice more specific than that.