The 'copies' work just as well. They're not even copies to begin with. The design has been around for decades. Mine has lasted years and still loud as day one.
They're not. The design has been around for yonks. Spur just used fancy materials and charged a premium.
Whichever you buy is up to you, but giving Spur the credit for a design that's been around for decades is a bit unfair.
The 'copies' work just as well. They're not even copies to begin with. The design has been around for decades. Mine has lasted years and still loud as day one.