You've paid for a quieter basement ceiling. The insulation is in, the drywall looks good, and one wrong screw connection can still let sound bypass the resilient channel. The detail worth checking is small enough to disappear before the paint arrives.
The connection is part of the acoustic design
ClarkDietrich's installation guidance warns about screws contacting framing and requires details from the applicable tested assembly. Channel, clips, board layers, and cavity insulation are not interchangeable ingredients in a universal recipe.
Plan what gets attached afterward
Lights, curtain tracks, bulkheads, and storage fixtures need suitable support that preserves the intended assembly. Ask how perimeter junctions and penetrations are detailed before the board goes up. In a suite, acoustic aspirations do not replace fire-separation requirements. Keep the approved assembly information available to every trade working on that ceiling.
Before the next step
- Identify the exact assembly and installation instructions.
- Review fasteners and junctions before concealment.
- Coordinate future fixtures before they puncture the ceiling.
Have the channel connections, screw lengths, and planned fixtures checked before the board hides them. That is a much better time to find a rigid connection than during the first noisy evening upstairs.