For a long time I have noticed that IMP scoring shown for some hands has inconsistencies. For example, one pair plays a board in a major game making four for 620. Another plays the same board in No Trump making four and scoring 630. In spite of one pair scoring more than the other I see them awarded equal points. Is that a glitch or is it deliberate. Today I played a board, bid and making 4♥ for 620. Another pair made the same bid with the same result for the same 620. One pair was awarded +9.3, the other pair was awarded +8.4. Again, was this a glitch or was it deliberate? Here is the described example.