@jacob Yup, the 81mg stuff is what I have too. It's a good choice for a first aid stash, if it's available. Can confirm they are very chewable in an emergency 😬
And yeah, wilderness medicine is much trickier. IME at least, when 911 is involved they'll make you take a full 320mg since more help is minutes away and so it's worth the slight extra risk to tip the balance further.