How much isopropanol is effective but safe for viny?

As I indicated, my information came from The Dick Doctor who has spent his life in research and development of products specifically related to cleaning records. I would prefer to err on the side of caution rather than risk damage to my collection. Your collection is NOT my concern if you choose to gradually destroy it because of your own arrogance in the face of facts.

Yep, I am sure you do consult the Dick Doctor. 
I've already asked, what are your "facts"?  State your case.  My own "arrogance" is based on trying to find the truth, only.  If I were to find well conducted science that proves your point, I would be more than happy to accept it.  What I have found so far casts doubt on the notion that diluted isopropyl alcohol, used once or twice per LP, could do any possible harm.  I am open to your logical counter-argument, but not your BS.  Have you accepted the fact that cartridges are inherently balanced devices, yet?

@lewm Stop feeding the troll. You can leave a vinyl record submerged in 100% alcohol for 10 years and it will be like new after removed.

12oz distilled water
2oz of 91%+ isopropyl alcohol
Few drops of Woolite.

@invictus005,

Do you have years of research on, or really (any) research on how isopropyl alcohol affects a vinyl record from becoming brittle over time? Huh? Cummon’?

Seemingly, you’ve left a vinyl record in a vat of isopropyl alchohol for 10 years. How else could you make that claim? Even more.. it’s not how it will look after a ten year bath, it’s how it will hold up 50 years down the road.

Put up and shut up! Your type of ignorant comments affect me since I do spend time trying to perfect my cleaning methods, and overtime have done so with remarking here. What about you?