It seems that the 4001S and 4003S were fairly popular. I also understand that these models came with dot inlays. I have no qualms with this at all and am infatuated with my 4003S.
What I don't understand is how anyone hasn't made a decision to create a 400xS body with a regular 400x neck and triangle inlays.
Also, it seems that one of the things that people instantly recognize--aside from the headstock--are the triangle inlays. Why wouldn't a 4004 have triangles as well?
It seems like an instant success with the contoured body of both the S series and the 4004 and the triangle inlays. Those are two of the features I enjoy most and it seems I can only enjoy one of them on any single 400x series bass.
Anyone have any insight on this and why this never happened? Or can you correct me and point me in the right direction. I didn't see this model listed in the Model of the Week series so I can only assume it never was built.
I don't know. I just felt that it was a no-brainer and would silence those detractors who think "the edges are too sharp" on a 4001/3. (I'm of the opinion that if you think the edges are too sharp, your technique needs working on though
I'm sure the purist side here will flay me alive for such questions, but I felt they required some discussion.

