I have a 365 special, a husky 50 and yes, a wild thing. The 50 is getting a little old , the 365 is a little bigger than what I need most of the time and the wild thing is a wild thing. Don't really need another saw, I do mostly trail work . Might be a branch or a fallen tree. I guess I was most curious about how much performance gain there was with 5cc .I guess the weight would not be much less between 45&50cc, but is there enough performance gain to notice?