What the thread found

• An EFP arm experienced catastrophic spring and cable failure during use, producing a very loud snapping sound
• The LUNA Arm model ranges from 15-60 or 70 lbs capacity and is described as having good pricing
• Multiple arm failures occurred within a two-week period among different operators
• A 3-A arm snapped prior to the main incident described
• Extended shooting days of nine hours or more may contribute to arm failures
• Spring color variations exist, including Red Springs, Blue Springs, and Silver Springs options
• A Spring model rated for 10-70 lbs capacity represents an upgrade option

Depends on

• The discussion does not specify what caused the initial failure
• No technical analysis of why multiple arms failed in close succession
• The reliability of different spring types is not compared or tested
• Casual mentions of other equipment failures without detailed investigation

Gear in this thread

G-70catalog

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