Suggestion to Dynamic que problem

First of all i am sorry for future grammar mistakes since english isn t my main language.I just watched the video and think abaut the problem when premades meeting solo que players and the win percentage is like close to %55 to %45.Means 5 men premades has %10 more advantage.More spesifically 5 men premades win %5 more and 1-3 premades lose %5 more than they should when they face each other.I wonder what it would be like ; for example guy X gains 20 points after a win with 5 men premade vs 1-3 or less.How abaut giving him 19 rather than 20 which is equal to %5 of less than 20 points , and the loser team loses 19 rather than 20 .This way players ratings will be protected.