oneslowbird G'day,
the custom I had trouble with has jigged bone scales.
No it wasn't used very heavily, just my daily carry, cutting cord and wrapping, peeling fruit etc. It has been dropped a couple of times which probably wouldn't have helped much.
When I go scrub my main users are an Endura and an Aussie made Hunter I've had for about 15 years. I do a bit of 4 wheel driving and camping, we have incredible country up here and abundant wildlife, (more crocodiles than you can poke a stick at).
Where I live is in the North East coast of Australia, in the Tropics.
My day to day job involves 50% office and 50% inspecting building sites and commercial premises, so my daily carry doesn't get too much hard use.
Hope that's answered it all for you