Weight wise, there's no way it's 13+ lbs for a 45. I don't have a good scale, but "feelslike" just a touch heavier than my Dolmar 420, like less than a 1/2 lb heavier - could be just balance causing it to feel that way.
My Quake has been sitting in the corner, waiting for winter to die down so I could go find some wood for it to chew on. Hope that will happen this weekend. Gonna have a try stock first, then see the differences when I go to "good" chain, then MM, and give my stack exhaust a try.
Apparently, though, my 420 scares the piss out of it when the lights are off. It leaves a lot to be desired in the holding bar oil in the tank department. It was suggested earlier in the thread that it might have been seeping from the area behind the bar, but that was disassembled and cleaned the first time I looked at it, so it's coming from somewhere. I'll have to find out where next time I tear it down. For now, it's gonna get a cardboard diaper.