Shimano 12s Chain Quick..
New here to Shimano chains and 12 speed. Always used KMC 10speed chains with reusable quick links included. New bicycle was delivered with RD B screw way out of spec and resulted in me having to cut the chain. This means I had to open the Shimano SM-CN910 12 speed quick link, cut 2 links out and reinstall the quick link. Then, DOH, accidentally installed the quick link with arrows facing the wrong direction. In effect, I reinstalled the quick link twice