The colonel was the first person to popularize OP in India about 2 decades ago. It's apparently now on the sides of buses (courtesy of the local sesame oil company). He's done a good thing due to the lack of dental and medical care in India. Even the poor can do this. It is truly amazing.
I say your gut can't do you wrong. I think it's a good thing to hedge your bets in this case....use TWO oils!!
We are all pioneers on CZ and your opinion is worth a million bucks.