just found out a couple of years ago when getting a new chain & was "wtf" is this? It was such a dog and even switched store to a more professional service. But i've cut thruout my life. i noticed one cut was angled, is your saw cutting straight? it might be worth a professional filer if your not proficient, the cutting teeth & the dogs(that drag sawdust out) need proper filing. all the best fren       safety chains<prochains