[afterburn 549]

This is the very first time I have used the proverbial Holy Grail - the HSR.

They have another problem -they do lean out as they warm up.!
I am so used to the CV and just love it.
But it is getting too small for the air volume.
The HSR has a futter noise with the reversion too, I can't say that is very appealing. yet said to be normal.
People do make larger CV carbs now, even Scream Eagle offers a 44.
I have a distinct feeling that is where I will end up back at, a version of the larger CV.

The AFR numbers loafing along at 55 MPH run out past super lean at times.
Or like you stated at idle and coast they can go off the scale -no big deal....
albeit I am not used to this.
There have been so many changes, it is a getting used to, and , finding what also is the new norm for this application.

Seeing it idle very lean concerned me being I do go into very HOT climates.
I keep working with it.
With OAT in low 60 it is now under control bouncing around 13.
I can live with that at idle.
Extra heat and extra holes I cant.
Plus separating the AFR lies from truth.

The real truth here is understanding what is going on in application and not so much what the gauge is reading at all times.