I´ve said this several times, and purists take it as an offense, but I think some day we should assume high DF cars (ie fast cars) and numerous wheel to wheel battles are not compatible.... unless we make something to equal cars perfomances while battling
At first I thougt about increasing DF on chasing cars, but experts have always pointed turbulent air is low energy air so there´s no way to get same DF from it than the leading car from clean air.
Then, if we can´t solve that, there´s only three options:
a) We get rid of most DF to allow wheel to wheel battles
and assume F1 can´t be as fast as it is currently,
b) We forget past eras where DF was lower so wheel to wheel battles were common, and assume if we want fast cars, we must sacrifize wheel to wheel battles
c) We allow active aero,
but not to increase DF at the chasing car wich is impossible because dirty air will always prevent the chasing car from getting same DF, but lowering the leading car DF to more or less equal the chasing car perfomance.
. It should be automatic, and progressive, for example (percentages invented, just for clarification purposes), if there´s a car 2 seconds behind wings will flatten 1%, when he´s withing 1.5seconds wings will decrease AoA 5%, below 1 second 10%, below .5 seconds, 20%. Or whatever is necessary to reduce perfomance differences to a point they can fight.
Most people will be thinking right now option c) would be a gimmick. And I agree, but not any more than DRS, or mandated tires, or top 10 not allowed to choose the tire to start the race. There are a million gimmick rules to more or less equal cars perfomances and allow wheel to wheel racing. Difference is this will work and will allow fast cars with huge amounts of DF wich still can offer wheel to wheel racing, and in the end I think this is what most F1 fans are eager to see