Biltmore, what you wrote isnt really helpful its purely speculative and full of shoulds.
Id like data from experienced wearers of stock units thanks.

I had two french lace systems which lasted 10 months.
But I really doubt sfs being a lot thinner and more fragile would withstand thst kindof durability given the same care.

I have never ordered a stock unit so Id like to know how it stacks up in durability.

What Id like to know is how long wearers if an sfs system managed to get their system to last before replacements were necessary.