Using the logic that if you don't build every bolt nut and stuff then ford and Chevy are car assemblers. We know that ain't true as long as you cut your own edges and finish yourself your a builder.
This was my post....
"I think shell prep and hardware are the seperation factor between assembler and builder.
Shell blanks may come from Keller, but... edges, beds, hole prep are done in house. Hardware could certainly be made by others, but design is proprietary.
Anything less than that, I think, is just building the other drum with a different badge."
I cant see how you came to your conclusion from my post. There is nothing in your post that even begins to relate to my statement above. I think I made it quite clear that proprietary design seperates assembler from builder. Making the same drum as 27 other boutique "custom drum company" assemblers are pushing at astronomical prices with varying levels of "custom" in relation to finish...ie, offset lugs, venting, paint schemes, holes, etc.... using the exact same generic selection of lugs, spurs, and mounts ... is NOT a Custom Drum, in my opinion.
When a lot of companies were rolling shells with an overlapping kerf joint, often with the wrap rolled right into the shell, Rogers and Gretsch were using Jasper shells that did not have such a joint. Rogers switched to keller in 62, using a shell with cross laminated plies and offset joints that were a much stronger, and more stable shell design. And perhaps more expensive. They pretty much invented the modern bearing edge in 1962. Their Beavertail lug design, hoop shoulder, Swivomatic hardware was entirely house proprietary. And a good bit of that was jobbed out to several different parts suppliers. The design was their own. The COB shells for the Dynasonic and the Powertone were spun by an automobile wheel maker. (I believe that information is in Rob Cooks "Rogers" book).
You do not need a badge on a drum made by Ludwig, Rogers, Slingerland, Gretsch, Leedy, Camco, or any of the various combinations of some of those companies from the 50s onward to know who made the drum, if you have even the most basic knowledge of drum history. However there are quite a few Custom Drum builders in existence today, that once you cover the badge, you would have no idea who made them, because they have the same shell, same lugs, same hoops, same mounts. That is an assembler. The only thing custom you might get is a varying level of finish quality.