there have been individuals who have perpetuated it, but it has bever been a church doctrine, just one of those “traditions”.

But I do continue to admire the creativity of your memory.

Now you can drink a cola drink and have a Temple Recommend. Times change and so does doctrine.

Think more like Cardston, now.

Anyhow, I guess it does depend on how you define “core” values or doctrine. As far as I know a little research in scriptures or the prophets wording should settle the issue on such things as tithing, cola drinking etc. Of course there will always be various interpretations due to various personalities or misunderstandings. There are some core concepts that have always been universal in my lifelong observations in the church. The basic teachings of Christian ethics as well as the basic teachings regarding salvation. What get’s catagorized as a “sin” seems to be where there is a lot of division. But once again I think a little honest research would settle most issues. Like John implied, people are left to use their minds and figure out a few things on their own. If everyone really cared about their accountability regarding their opinions and took an honest look at the supporting doctinal evidence, there would probably be a lot more continuity. But free will seems to prevent this ideal.