Service penetrations — how are you sealing them these days?

Cable and pipe penetrations through fire-rated walls and floors are still where most compartmentation fails. What is working on your sites: - Mastic sealants for small penetrations - Cushions or pillows for larger openings - Pre-formed collars vs wrapped intumescent - Coated boards where multiple services converge And more importantly: how are you getting installers to actually do it right when they are under time pressure?