@pryso Here’s the protocol I use. Firstly, if the record is fairly new or clean, I skip the US step and just use wet vacuum. If the record is dirtier or older, and depending on condition, I will first do a US clean, always utilizing a surfactant in the distilled water and will do a three stage clean. First stage, I degauss the water, second and third, I have added the surfactant. Once reasonably clean from the US machine, I then transfer to vacuum with typically a once over with Mobile Fidelity super deep cleaner, maybe a separate rinse with enzyme cleaner ( again depending on condition ). Lastly, always replacing the record sleeve with a fresh new MoFi inner sleeve.