Making Norther Brewers "Off the Topper" Juicy?

[uberculture]

I’ve still never had a proper cloudy NE IPA, but these topics may be of interest:

Who makes a New England IPA

brew_cat I’m pretty sure FBD is just a 100% Citra version of Sea Hag.

NE IPA - water profile

I plan on brewing my first New England IPA soon, and it will be a brew-in-a-bag. My research suggests that a CaCl addition, and possibility a gypsum addition, will better my beer. As someone who has never before really cared about water quality, I have two rookie questions: How much CaCl and/or gypsum should I add to a 5-gallon batch? When, exactly, do you add the CaCl and/or gypsum? To the mash water, to the boil, both? Thanks much for any insight you can lend! -BrewRaider