I currently own three saws equipped with BOW bars. one sthil 041, Poulan 345 and Mucolluch 700. I grew up in a pupl wood logging family and have been around this type of saw all my life. I have used them to fell , buck and limb lob lolly pines and red heart ceder. The saws are very dangerous but also very productive. I personally have experienced two kick backs both times while limbing. Thankfully I kept my guards inplace and only sufferd a bruse.