Villa, he doesn't care for Castor. I think it was his second month that he wrote about it. As I recall there were mobs of American modelers covering every airport in the USA just in case he tried to sneak into the country and they all had fresh ropes.
Pretty much everything he said is true but truth dies hard and changes in our way of thinking even harder.
Myself included.
I have been using Power Master fuel for years, 15% nitro and 18% oil BLEND, just because!!!
Because I can't find any fully synthetic fuel in my area and I have never had any problems with what I use. I use this fuel in everything from 1/2A to YS 1.40. I don't add anything to it. I know how to turn those screws on the carb so I don't need any more nitro to get my engines to idle way down low. I don't add any more Castor Oil for break in, that 18% has worked out just fine and I have never seen any sign of oil trouble on A tear down except for some glaze from laquered Castor oil.
By the way, he also wrote about our fuel breaking down over time too. { Or the lack there of} This one should be read by everyone. I have put his findings to the test several times and must agree 100% with him. I was running 10% fuel that was well over 10 years old without A hick up in some rather large four stroke engines. I didn't do it to proove any point, I did and will do it because I fly on A very fixed income and I never turn away from any free stuff.