How does the gimbal respond when using a smartphone case and/or aftermarket lens kits (olloclip)?

Id like to purchase this product but am concerned with any weight issues that may cause the gimbal to malfunction or operate less than optimally.

Feiyu Tech G4 Pro 3-Axis Handheld Stabilized Gimbal for iPhone

Feiyu Tech G4 Pro 3-Axis Handheld Stabilized Gimbal for iPhone

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