My natural inclination when hearing a phrase like "adjustable 6D" lumbar system, one of the signature features of the Razer Iskur V2 gaming chair, is to be skeptical. It sounds like a marketing line meant to sound incomprehensible but appealing--that's more Ds than my current chair, surely, so it must be better. Although I can't claim to know whether the technology on display here justifies such an ornate descriptor, the Iskur V2 is nonetheless a terrific chair with an impressive number of...