I'd say that GaryS' explanation is about as good as any. And while true enthusiasts can (usually, mostly) decode the 3rd Gen model number system, you would have to be a true "company man" apologist to describe this system as anything other then a very well executed mistake. An idea that sounded far better in theory than in practice and (especially with the Value Line 3rd Gens) really serves large doses of confusion.

It must have wreaked havoc on gun shops in selling to end-buyers. It probably helped to stunt the sales of some models, too.

The confusion of the model numbering system is one thing that most of us actually agree on! And by saying that out loud, it's like broadcasting a world-wide Bat Signal to those who disagree with my assessment. Hahaha.