I agree it is important to know the functional limits of ones gear. This knowledge allows one to pack appropriately within the expected variances for comfort and survival necessities.

I am often pushing the envelope for my gear. The sole purpose is understanding the functional limits to make informed choices for other more demanding trips. I also experiment with different combinations to know how certain items work together to extend the limits for potential emergencies.

Another aspect related to the limits of the gear is how to use said gear in ways very different from their intended use for unique emergency situations.