Hey there.
Just wonder if the PowerLock link (which is a little different shape than the rest of the links) can affect cassette, jockey or crankset rings/cogs in any way.
Is it important to use the same brand quick link as the chain? I think Sram and KMC says it's universal fit, but I remember I read somewhere on Shimano website to use their own brand only, even if chain rollers seems to be not affected size-wise/shape-wise while using other brands...