I put a new Oregon chain on the WildThing and it cut great the first trip out. The second trip (a week later) it kept bogging down in the cut. Not always, but definitely far more than I've ever had with this saw. I adjusted the chain tension the second time (in case it had stretched) and wonder if that made it too tight? I checked the tension and it looks Ok as per the chain and saw instructions as far as the distance I can pull the chain away from the bar. Still, it is nagging at me as I feel I had to really crank down on the tightening screw when I adjusted it. What are the symptoms of a too tight chain?