Steve,
Not an attempt to be contradictory, but we want to avoid any CONFUSION regarding target presentation; and below is a "copy and paste" quote taken directly from our 2018 Challenge Rules formant, which format has existed several years now:

7. Target presentation for the Event One qualifier will be 50 TARGETS fired on ONE 5-STAND course; and the target presentation shall be as follows: one (1) Report Pair followed by four (4) True Pairs at each of the five, 5-stand shooter stations.

As of today, NO TARGET FORMAT CHANGES ARE PLANNED for the 2021 Challenge Event; therefore I'm sure you inadvertently misstated the percentage of Report and True pairs presented each shooter.