Cool!
I heard of these but have never seen one....
A few years back EC Birt and I were talking carbs and castings.
Before he died I was under the impression he was going to make his own carbs based on the HL.
The castings were going to come from China and machining and proprietary stuff would be done in his shop down there in the USA.
This was not a really well kept secret.....
I knew and so did others because the clone HLs started to pop up on ebay with all kinds of Chinese drill patterns intended for saws.
Those carbs sucked actually, well for anything we are interested here.
Then Tillotson Ltd I guess gets rattled up over this.
The HL is long in the tooth and being cloned.
The HR is a dinosaur and out of production.
These new HW series are supposed to be the great white hope that keeps the clones at bay.
Well its too big for my needs but its a very cool carb.
I would love to have it just to dissect it....