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In the future, and while it may seem odd (or for me anyway), set your target score to match your current score.
Did anything major happen since Sept. 5 other than age? Aging accounts really don't produce a score increase. FICO reads the opened date in relation to the the current month, therefore any change would have occured on 10/1, 11/1, 12/1, etc. One month's worth of aging really won't produce a score increase. It may take months before a score can move due to aging. DW and I pull our scores 2x per month. Between February and July, DW's TU and EQ score didn't change. Yes, it went up and down due to util, but the util was the same in Feb. as July and both scores matched. Any changes you'd see would likely come when your oldest OC account hits another year old, or AAoA moves up one, or your oldest revolving hits an anniversary, etc.