Since it was the power link that failed, there's no reason to assume the chain has a problem, nor to cut it shorter. Simply replace the power link and you're good to go.
Note: Sram says not to reuse 10s powerlinks, yet you say you remove the chain every weekend. Are you replacing the powerlink each time? Of how many times have you reused a use once-throw away powerlink?
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.