OOD,
Yes, I see what you mean, and I can see how it would lead down the wrong path to use the word develop (at the very least, it would be confusing). I must admit that I am also uncomfortable with other language as I usually associate it with the Western view of tradition, but in this I overreact I think. I normally do not like the word "deposit," for instance; yet today I came across this while I was looking for something else:
"Besides all this and before all, keep I pray you the good deposit, by which I live and work, and which I desire to have as the companion of my departure; with which I endure all that is so distressful, and despise all delights; the confession of the Father and the Son and the Holy Ghost." - Gregory the Theologian, Oration 40:41
Perhaps part of what plays into this discussion is whether we should make a sharp distinction between "big T" Traditions and "little t" traditions. I personally think this is a bad (=misleading) dinstinction to make, and almost always seems to lead to bad results. A distinction between custom and tradition is one thing, and saying that certain parts or the tradition can sometimes be not applicable to the letter (e.g., while the canons dealing with slavery are as relevant as ever in there spirit, the letter isn't directly applicable to us), but I think the big T/little t thing leads in the wrong direction.