Somewhere along the line, Oregon slipped up hard on the roller noses and bars.
I never really liked them, but they worked well enough not to hate them.
That changed a couple years back for me when a 24" power match I bought new locally, started wearing unevenly on one side but not the other, and then blew out a nose. Then another nose, and then another.
I chalked that up to one bad bar, and some sort of hiccup in China at the Oregon roller nose factory.
Oregon LGX has NEVER been worth a tinkers damn for me.
Plenty smooth and fast for a couple cuts right out of the box, and right off the file, but it's dog terd soft and not worth the angst.
Carlton and Bailys branded Carlton, is cheaper and holds up a hell of a lot better anyhow. Screw the vibration, it isn't noticed while wearing gloves anyhow. Might have to file it right out of the box though..
That's good to hear about the Tsumura bars.
With Oregon reducing Carlton bars to chineese made crap, and GB bieng spotty, it's good to know.
Stay safe!
Dingeryote