billyboy
ArboristSite Operative
About 6 years ago I did a Hwy/Meteor, Caber rings. I probably looked stuff over somewhat. Didn’t do any caliper type comparison of this or that. Put it together and ran it with a bit more oil in the mix. It’s an 036 with 175 psi and it seems to be a very good runner. I have a couple 50 cc saws and lesser cc saws for comparison. Just my ignorant 2 cents. Maybe just lucky.