I think you're onto something here. After reading this this morning I've dropped the idea of trying to get these to function well with bone crushing rock music. That would work with those other CV speakers that appear to be made exactly for such stuff. I'm now giving this particular set of CV's a chance with other music like classical, broadway and 1950's vocal pop such as sinatra, bobby vinton, etc.
Well guess what.
If what you are saying is correct, then CV hit it out of the park. That it didn't catch on with consumers is unfortunate, but understandable given the CV's reputation for the boom/crash. You don't go to a Jeep dealer looking for something that rides like a Lincoln. These speakers have a quality similar to a pair of University's I had awhile ago, another three way design, but with a 15 inch woofer. Even with that big driver the university's had a hard time with some lower bass passages in the music I just mentioned but excelled with dreamy sounds in the mid/high area. The CV's here have that same dreamy, clear sound BUT bring more bass to the equation than the old universitys. No, not thunderous, but that's not what this music is about.
In summary, I now think I was asking these speakers to do things they were not born to do, but now that I've discovered their calling I'm pretty happy. I may take everything out of the vinyl cabinets, crossover included, and put them in a new home: I picked up a pair of these not long ago, but they contain mediocre drivers from the 60's and sound like a not very good console unit. The CV stuff inside these cabinets might be a very good match.