that's true. from what happened to me it never reduces to 2 values, sometimes I'm left with 80 or more results.
here's what I look for to know what those 2 values are:
1. they're always next to each other in the results list, and are 4 addresses apart. ex, if one address ends in A8 the address below it in the results list should be AC.
2. the values are almost always in the millions or billions, and are often negative integers.
3. i look at the ending digits of the values to see if their difference equals the last digit of the value i want to edit. ex, my copper value is 145 and i have 2 suspect addresses with the values 1,805,878,500 and 1,805,878,355. since 500 less 355 equals 145 i know these are the addresses i need to edit.