Doug...The commercial rinse I used in the cleaning of one of the records was the latest [Mo]bile [Fi]delity. With the other disc, I mixed the 99.9% pure isopropyl with water that goes through a multi-step process which, FWIW, claims to achieve "about the theoretical maximum for ultra-pure water". Also, I did and do vacuum with the VPI record cleaning machine. As indicated, I've experimented several times with this ritual. Here are/have been my components: VPI HW-19 MK 3 and Teres 265 turntables, SME IV.Vi tonearm, Zyx Airy 3 and Dynavector XV-1S cartridges, EAR 88PB phono preamp, Air Tight ATM-3 monoblock amps, Dunlavy SC-4 speakers and Ridge Steet Poiema 3, Poiema 3 Signature and JPS Superconductor 3 cables and power cords--all in all, a pretty revealing system. I doubt I'm as thorough as you are in your cleaning process, "...which would drive most people nuts...", but I feel I do a decent job. Anyhow, all things considered, of course, we are dealing in part with the subjective element in evaluating outcomes and the usual YMMV,etc.