So, I've thought all along that I was using "safety chain", and had been contemplating experimenting with a more agressive chain on one or all of my saws, based on recommendations made here. Then I picked up this new Husq. T435, and see a chain that is clearly much more "safety" than what I'd been using. I've been using the Oregon Vanguard 72V chain: (click for full size) The new T435 came with the following chain: (click for full size) I can see why the T435 chain would be called "safety chain", as it would be nearly impossible to get much bite as the chain rounds the nose of the bar. My Oregon 72V chain is referred to in the Oregon literature as an OSHA safe chain, but lacks the raised tie straps of the T435's chain. I think I've also seen this 72V chain advertised as both "semi chisel" and "round chisel". Can someone educate me? Thanks!