SL module - 4 quizzes attempts but only want top score reporting

Hi, set up a SL file that they can complete a quiz, if they get it wrong they get one more go, if they fail this they have to complete the whole module then get a test 3 and worst case ( never happens) test 4. However only want the highest (pass score) to be the one reported to the LMS. 

Results slides just seen to give me the option on a combined score and not the best score. Without having to create millions of variables, I wondered if anyone has created anything like this

Many thanks in advance