Glad you like the saw, Rich, I might be the only one to say or think this, but that's a lot of HP for such a small bar. If all you need is 20" I'd venture to say a 60cc saw would pull it fine and save some weight. Lets hope you get to some bigger jobs soon. And if you're nearly stalling a stock 70cc saw with 20" bar in oak you're definitely doing it wrong. Also, not sure that I understood you, but are you saying you're using this saw as a limbing saw? ... on 18 foot trees, where the limbs are like 4-5 inches? Again, I think you're schlepping too much saw and could have gotten by with a lighter saw.