If one of you can get CLB9 (IELTS LRWS 8777) before turning 30, and the other gets IELTS 6666, then your CRS should be 464. Same as me and my spouse. Try to use the calculator again, I’m sure this is the precise CRS.
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Age of 29 - 100
Masters - 126
CLB 9 - 29 x 4 = 116
Additional points...