What operators found

• One experienced G70x operator reports the Rocket Arm as the best arm tested: smooth, compliant, without spring effect, no perceptible friction, and completely silent.2026 FacebookDisputed
• The arm bones are drilled with holes to allow repositioning of band anchor points, enabling tuning of arm behavior.2025 FacebookDisputed
• Operators transitioning from a PRO-Arm to an NB-Arm can remove the post tensioner entirely, allowing the arm post to rotate freely and loosely as on the PRO-Arm.2025 Facebook
• PRO arm section measures approximately 9 15/16 inches overall length, with pivot-center to pivot-center distance of approximately 9 3/16 inches.2022 Facebook
• One operator with eight years of exclusive PRO use ranks the NB Stabilizer Arm as superior, citing sealed bearings for outdoor use and reduced reliance on the Tiffen G-70X.2021 FacebookDisputed
• NB Stabilizer Arm uses exposed rubber bands for capacity adjustment and has a documented failure incident recorded on video, making its reliability questionable despite some operators endorsing it.2021 General Discussion

Still argued about

1. 2026Rocket Arm (elastic band arm) versus traditional spring arms like the G70x: performance, weight, build, and design dispute.FacebookThe Steadicam Group
2. 2025Rubber-band suspension arm with adjustable anchor points: first impressions versus spring-based and competing band designs.FacebookSteadicam operators group
3. 2021Comparative handling of NB Stabilizer Arm versus PRO Arm and Flowcine Xarm: stiffness, responsiveness, and fatigue.FacebookThe Steadicam Group

Often in the same threads

G-70X4, Arm Post3, xARM4

All threads

1. 2026Rocket Arm (elastic band arm) versus traditional spring arms like the G70x: performance, weight, build, and design dispute.DisputedFacebookThe Steadicam Group
2. 2025Rubber-band suspension arm with adjustable anchor points: first impressions versus spring-based and competing band designs.DisputedFacebookSteadicam operators group
3. 2025Removing the post tensioner from an NB-Arm to replicate PRO-Arm feel for operators switching models.FacebookThe Steadicam Group
4. 2022Arm section lengths (pivot-center to pivot-center) in PRO, Tiffen, Xarm, and NB models: whether larger boom range derives from longer sections or wider opening angles.FacebookThe Steadicam Group
5. 2021Comparative handling of NB Stabilizer Arm versus PRO Arm and Flowcine Xarm: stiffness, responsiveness, and fatigue.DisputedFacebookThe Steadicam Group
6. 2021Comparison of Steadicam arms for use with Arri Alexa EV and Cinema Products 509 sledGeneral Discussion
7. 2021Comparison of NB arm with PRO arm for steadicam workArms
8. 2018Rubber-band stabilizer arm (NB ARM) vs. spring-based arms for daily use: temperature stability, load sensitivity, and maintenance demandsDisputedFacebookThe Steadicam Group