25 year knife carrier..mostly spyderco endura models, Yet never felt comfortable using them for anything other than cutting light materials.. To save my life or for hard use only my cold steel folders
Give me confidence. Liner locks I just find myself giving away the few I have and telling friends they're for light use only.
The endura can cut more than light materials, I assure you.
Not sure what "save your life" scenario you have in mind, but the chances are likely quite low that you would ever be faced with such a scenario.
Do yourself a favor, assuming you can afford it as it seems like you have multiple knives so it's likely, and go see what it can handle. I never recommend prying with a folder outside of small things like cardboard glue and staples, but try some other stuff and see what it can handle. If you're stuck in the thought that it can only handle light duty stuff, you'll be pleasantly surprised.
As an FYI, cold steel has the same "flaw" as other folders, a bolt and pivot. I've hard used folders pleanty and the bolts coming out is most often the point of failure, not the lock. This is especially the case of the large CS folders that are good at chopping (espada, rajah, etc). Or the edge gives out. Either way, they're more durable than we usually give them credit for, outside lf prying.
I've been rough with slipjoints, just to see for myself, and they can also be used pretty rough but if the blade gets stuck, like from batoning, getting it back out is quite unpleasant and not safe. I recommend getting cut resistant gloves if you're going to be an idiot with a slipjoint like I was. But, now I have a better understanding of what I can and shouldn't do with a slipjoint, especially if you carry a SAK as part of your emergency kit.