So in a follow up to my other thread (Play in chain) I think I some how made things worse (or maybe it already was). So there was significant play in the chain. I tightened it up and went for a ride around the block and hear a creaking noise. Stop, get the bike up on jack and by spinning the rear wheel see that the creaking is caused by a few links not sliding into the teeth properly. I decided the chain may be too tight and losen it up again, repeating the experiment with the bike on the jack. Still creaking. Loosen it up a bit more and spray the area with WD40 - I even massage it in making sure each link is flexing nicely. Still creaking and I can even see the links struggling to slide into place. Well, its pretty much a guarantee Im up for a new chain. But would anyone know how this could have happened? Did I make the chain too tight the first time round and ruin it during my test ride? Need tips to avoid in the future! Any advice is appreciated!