Thanks for sharing Burncycle. My thoughts were that the bona fide SAS would be appalled to see the regiment's name attached to such a mickey mouse kit as the one you first purchased. Seems as though someone is taking their illustrious name and trading off it. Shame on them.
My thoughts on your kit: Perhaps a straw [ good for drinking out of puddles ]. Pop an acquatab into the puddle first...
Someone has already mentioned more fire-starting kit. Depending on where you live in the world, perhaps tailor your kit to your environment.. severe heat , cold etc. Winter kit, summer kit..
And how about more band-aids? I find you can never have enough...
a few thoughts... cheers...PeterR, Australia