A laminate 20" is a great bar for weight reduction and cost, if you're making a lot of bore cuts/blowing the tips out get something with a replaceable tip, but remember now you've added weight to the tip, which is the most crucial point to me. That being said it's a 20" on a heavy saw, just don't fill it up all the way, run skip chain, lots of ways to shave a little weight. Mill a couple thousandths off the bar if you must, whatever, as I said were talking about a 20 on a heavy saw.
Most importantly if your only running a 20 you're obviously not a professional
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What's that make you
@Leeroy .