It would be a logistical nightmare to figure out a similar system in 4A and 321A. Unfortunately, that's just one of those things we have to live with. But insofar as 6A and 5A I think it's a great idea.
Although, if we went to my 48-48-48-everyone system.....Right Gary? LOL
You just kinda wasted my precious time But don't think twice, it's all right Bob Dylan, 1963