Do your players usually play matches with conditions 75-80%? Is this sufficient to compete according to your experience? My starting players usually play with conditions 97-99%.
Even if my last league match is extremely close to the end of season and then the 1st cup match is scheduled right after season start maintenance, I believe I can arrange all starting and backup players with 80% or more condition. So I will not request program developers to set player condition to 75%-80% when season starts, or add an extra day for condition recovery.