LOL, so many opinions! I'll throw mine in too. I thought the term "de-gummed" simply meant the oil was from the first pressing of the castor bean. Apparently, there are multiple stages the bean goes through before they have extracted all they can and like good olive oil, the best stuff always comes from the first press.

All I know is my fuel has a couple percent castor in it and I wouldn't have it any other way.