Don't waste money on ultrasonic RCMs

I see tons of people that claim alcohol has no effect on vinyl. I've tried lab grade 99.8% pure IPA and I can see the vinyl change when it hits the surface. The color changes from a deep black shiny color to dull gray- black. Has anyone else observed this? I've tried two brands of IPA. And it made the LP sound worse- more background hiss than before use. I must be using the wrong stuff??
I use an inexpensive RCM instead. Record Doctor V.  It does a really good job if you clean and then rinse with distilled water. 

Those of us who bought LPs in the 60s knew (or found out) that even if you only use isopropyl to clean your stylus with an artist's brush you wait 15 minutes (and blow on the stylus a lot) before playing anything. Otherwise, sounds great once. After that.. irreparable hiss.
I was taken aback years later to hear that you use alky on CDs, but it works fine on them. Never on a vinyl record.

Interesting Youtube video, thanks for posting. One must keep an open mind. Try it on one PL that you don't really care about and see what happens over time.

I can't begin to imagine what sort of gunk people have on their LPs that would require alcohol to remove.

Laboratory grade isopropyl alcohol (also known as isopropanol) is fine, so long as it is highly diluted in water. I cannot imagine using it undiluted directly on an LP surface. Furthermore, I wouldn’t use cotton; it’s fibrous and will leave tiny fragments on and in the LP surface, or at least that’s possible. A standard recipe is 25% isopropanol and a few drops of non-ionic detergent (Triton X100 or Tween20) to reduce the surface tension of the water. That’s what I use in my VPI HW17. There are HUGE threads on this subject. When it comes to ultrasonics, I am convinced it works, but I am not yet convinced about optimal ways to do it and so have not yet adopted the method. But for you (Invictus) to poo-poo the whole idea is rather silly, unless you were being funny. If the latter, you were successful.

Cleeds, It’s simple.  Alcohol will remove that which is soluble in alcohol. Oily deposits from fingertips, etc, are not so soluble in water alone, but they are more easily removed with dilute alcohol.  Can you imagine that there might be fingerprints on second-hand LPs?  That’s not too difficult to imagine.