Why not a Ultrasonic cleaner plus a vacuum type machine? This combination will definitely stands out most (all maybe?) vinyl cleaning method. Ultrasonic is safe to groove and very powerful to get everything out of the groove, and NO special cleaning fluid needed so you can just using warm water. There are many lab grade ultrasonic cleaners available on eBay cost from $250~600 depends on power and size. Once you have the vinyl cleaned by ultrasonic you can dry it by a vacuum type machine. If there still audibly noise then nothing on this planet can fix it.
