As I understand, the Scuttle borrows from the design of the Teo Audio rack ($7500, double width), which employs aluminum foam shelves with some carefully placed materials for damping and tuning. The shelves are very light yet strong enough to pretty much support a large truck across the span, the science of which can be proven as by far the most effective approach, especially compared with designs using high mass.
SRA borrowed from Teo? Really?