There are probably not many that can actually repeat a dinged swing . Even if it appears the same . It isn't . Humans do not have the ability to calibrate and set their motors to precisely repeat .
If you go to a course in Practice mode, you can take mulligans and only use your dinged shots for mapping. Just ignore all your non-dinged shots.
The way I would do my mappings was to take mulligans on each shot until I had hit 3 dings. (With my poor ding rate, sometimes that would take awhile.) Then I'd take the average of the 3 ding results and use that as my mapping number.