@Frank Apisa,
Jesus taught that many would rise up in his name and lead a large number astray (Matthew 24:5) There are also many scriptures instructing us to guard ourselves against false doctrines causing divisions and sects, notably 1John 4:1 states: "do not believe everyone who claims to speak by the Spirit. You must test them to see if the spirit they have comes from God. For there are many false prophets in the world."
You would need to test it against something, I have personally elected to use the bible as my source material. If a religion teaches that it's holy book is the word of it's god, and yet it does not comply entirely with it, then it is not complying entirely with its god and therefore unlikely to be acceptable, especially if it's god is the God of the bible.
On this basis, I would assert that lore and tradition are not in themselves an issue, so long as they do not contradict or go against scripture.
Personally I will never claim I have a perfect understanding, or empirical truth, I am working with my best guess, which I base mainly upon the words of the bobble, as Setanta so eloquently puts it. I have a model of understanding which gives me confidence, but I am always happy to examine the understanding of others. If it doesn't work in my mind as a viable model, I will put it to one side.