How to change scores for each position?

Hi, In the past I was able to change the scores for each position by editing some config file (I believe it was 0.7 yet).
Now I'm trying to find what file to edit (looks like it is in ..Data\supertuxkart\*) but the old settings don't seem to have any effect on the new files. Also, the game seems to edit those files on the fly, erasing anything I've tried to do.
I want to make all the scores differ by only 1 point, no matter my position (so 1st gets [nro of karts], second gets [nro of karts-1], and so on).
My reason: Usually when I lose it is by getting in 4th place or worse, while almost whenever I win the second place is already the best AI overall, making the game more challenging for me.
Thank you!
Now I'm trying to find what file to edit (looks like it is in ..Data\supertuxkart\*) but the old settings don't seem to have any effect on the new files. Also, the game seems to edit those files on the fly, erasing anything I've tried to do.
I want to make all the scores differ by only 1 point, no matter my position (so 1st gets [nro of karts], second gets [nro of karts-1], and so on).
My reason: Usually when I lose it is by getting in 4th place or worse, while almost whenever I win the second place is already the best AI overall, making the game more challenging for me.
Thank you!