My little Sthil 170 truck saw is a cutting son of a gun and it has a wrap around bar.I would never own a saw without one for what I use saws for....
Cut many a truck load of wood with this little saw.
Logcutter the MS200T will cut circles around the 170. Is easier to handle, is lighter, and has more power. And that is without doing a Muffler mod to the MS200T.