So would you choose duct-tape or bandages? You and me made the same choice: more duct-tape, wich is a survival- supply.

I do get your point. So if you start adding custom FAK-supplies, I don't really think that it is worth the space in your PSK.
So, as usual: choose multi-purpose stuff for the PSK.

BTW: You did made me put a sterile towel in my PSK after I read your post and I already carried some prep-pad's for fire-starting.

(Although you'r likely to find me without a PSK than without a FAK.)