From an engineering perspective, it would be impossible for a ferruled section to have the same characteristics as a continuous section. It would have to be heavier, probably stiffer, and would be a nest of stress concentrations. That being said, it must be damn small because I have never been able to measure the difference or tell the difference in casting. And 4 piece rods are damn convenient.
Godspeed and good fishing,
Bob
And Bill, I do have to call your dad and see how he is doing. For those of you who don’t know, Bill’s dad is a master skeet and trap shooter, a tournament bridge player, and one of the finest gentlemen I have ever known.