I agree CodyT.,
I under appreciated the MENS system and plans too many years until I got hands on a nearly complete set of saved original Mother Earth News magazines a couple of years ago.
Then I could ‘way-back’ and follow their live evolution developments over the course of several years.
Such as the up drilled jets added to reduce gluing hang ups.
They had three different mixers and control designs tried until their secondary stage carburetors conversions.