Yup, they are a joy, aren't they?!? FYI, I don't ever fit the acoustic gaskets, as they create a friction slip. Instead, I mask around the pan, a few mm before pinching it up for the last time, and pump the gap between the pan and the wall with clear CT1. Once fully tightened, and levelled, the excess CT1 gets removed with baby wipes until it is no longer visible. 48hrs to cure, then a cosmetic seal up with white microban based silicone and job done.