Your on your way...I know exactly how you feel, I started working on my Scores about 3 months ago and it very quickly turns into a hobby/obsesion. I had no idea how much fun & rewarding this could be.
One thing I kind of wonder about is what I'm going to do when I get them into the 800's. It'll be kinda sad

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Good Luck - tons of good info & knowledgable people here...