Mineral wool insulation / Discussions

...wool batts + Rockwool rigid board over the studs to provide a thermal barrier + Intello (or other) air/vapour barrier to allow breathing/drying + drywall (taped and painted). What insulation should I use in the wall cavity?  The top runners are Rockwool batts OR dense packed cellulose.  Should I consider HFO spray foam...

...mineral wool you built a few years ago?   The way we attached mineral wool insulation on the LEED Platinum Edelweiss House worked well, but was pretty labour intensive. There are a few options for attaching rigid insulation to the exterior of houses, one would be using fiberglass clips, another could be using the Larse...