About the same for me .When this thing showed up all I had close to it was an s-25 Poulan and it would walk away from the 011 Stihl .
I looked at the IPL and from what I can decipher this is a real old type of design which is surprising in 1981 .Oddly it shows the rod and needle bearings sold as a seperate unit from the crankshaft which I found odd indeed .Unless it were made in such a way it could be disassembled without special tools which I've never seen on any saw with a captive rod .
Like I said for no larger than it was it cut okay but did not exibit that typical Stihl zip .After looking at the design it's very evident why .It was never designed to be a race horse .