With what you have spent upgrading your LP12 i would think it deserves the solution that gives the best results and preserves the euphorik as much as possible. I also use an okki nokki but I’m suretge other cleaners are better with the ultrasonic clean
Been impresed with my hummin guru. Must have done well over 1000 pieces now. Easy to use.
I also have/ had/ away for repair a Project vacuum rcm too. But, the vac pump bearings failed, rendering it useless. It has been returned and awaits repair.
The hummin guru is very effective. But, i found you do need to change out the cleaning water every 2 or 3 records. Otherwise the water can contaminate the next record.
I use a combination of the degritter and the clearaudio smart matrix for cleaning LPs. The clearaudio is used for applying chemicals and the degritter used as a distilled water rinse. There is a good (and long) thread on the Hoffman site with more information that you could ever need. I too switched from the audiodesk and the degritter is way better.