I was already well versed and had a good understanding of the Bible before I ever joined the Church. It was the Bible that converted me to the Church of Jesus Christ of Latter-day Saints, not the Book of Mormon (although it helped). Your saying that our idea of prayer is somehow flawed (using your Islam statement) is flawed in itself. If a Muslim was to ask God the Eternal Father if the Bible was true and he got a wittness of the Holy Ghost that it was his word, would he be somehow flawed for asking? If you did the same with the BOM would you be flawed? I believe if you had a stronger testamony of prayer you would not ask such questions and make the statements you have above.
I notice how often a "Christian" tells us that our God is not the REALY REAL God or that Our Jesus isn't the Really real one. Your statement says the same. What God you ask? I know you know better. Who is the Father of the Christ? You know better.
As for a different Gospel Paul was preaching about.....well where do you stand? Is the Catholic right? The Baptist? The Methodist etc...? They all preach a different Gospel, but because they are mainstream its ok. In fact, I often notice how they can all buddy up together when it comes to this argument. They often say,"we all believe in the same Gospel , but celebrate /worship is different manners." If that is the case, why are we not allowed the same. Don't say the Bible says, because we use the Bible as well. In fact, you guys don't even use the same Bibles anyways. The Catholics have 14 more books than do the protestants... which brings up the other argument about us adding to the Bible by recognizing the BOM. Well, if thats the case, how come protestants have taken away and nothing is said? The King James Bible of 1611 DID include the Apocrypha and now it does not. Hmmmm?
Your logic is flawed because you don't fully understand prayer. Don't deny the Holy Ghost. For by the Holy Ghost you can know the truth of all things.