Which adjustment system is fastest and most reliable?

Twist-handle systems (NÜOBELL) and dial systems (Bowflex SelectTech, NordicTrack) are the fastest, generally under five seconds. Selector-pin systems (PowerBlock) are nearly as quick and, per multiple Garage Gym Reviews write-ups and r/homegym threads, tend to be the most durable because there are fewer plastic internals. Screw-collar 'adjustabell'-style sets are the cheapest but slow to change.