Originally Posted by _ForceD_

First…you do NOT have to use any quick links…at all…if you don’t want to. And personally, I wouldn’t use more than one quick link in any chain. I mean it’s possible to include as many quick links as you want. You could make an entire chain of quick links. But they’re not as strong as a regular link so I would only use one. Secondly, the remedy for the stiff link is this…
Once you’ve located the stiff link, place it in the ‘cradle’ of the chain tool farther out from the tool’s push pin ON THE OPPOSITE SIDE that the chain pin was pushed out from. Turn the handle until the tool’s pin contacts the chain pin, and then give it another slight turn…like just ⅛th of a turn or less. That should loosen it. — Dan