I've been running Oregon's Vanguard chain on one saw for a while since that is what came on it. Vanguard is the one with folded depth gauges so that they are about three times as wide as standard. It is really interesting safety chain because it works for boring cuts. The reduced kickback properties show up when you buck small stuff with the bar tip but it still cuts agressively!. I have not noticed this being 'slow' chain - it is a nice agressive chisel tooth like the other 72 series chain. Presumably it IS a little slower than pro chain since it is slightly heavier and has more surface area on the raker. It is a VERY smooth cutting chain. Has anybody done any timed cut testing with this chain against standard pro chisel chains? I hate using guard link chain but right now if the Vanguard were the only chain avilable I wouldn't cry about having to use "safety" chain.