KERS being revealed to other teams will have 0 impact on the outcome of the race.
Different strategies is what determines a race. If the majority of your league are on the same strategy and the race win is determined on who has X amount of KERS remaining, you are not using the optimal strategy for your car.
Every team's car will benefit differently on different sets of tyres and with higher fuel or lower fuel.
In my league, I am often the higher paced car, despite being 10 Litres heavier per race at lap 1 than 2nd placed team all last season.
Sometimes they finish 20secs ahead, sometimes I finish 20secs ahead. Bahrain I have mastered with 7-straight wins over the last 3 years there, and I am on a completely different strategy to others. One year someone tried to replicate my strategy and they were way off the pace despite having a better developed car.
Refer to this
race. For an example, pay attention to my cars and Squadra speedgeek, we are not in a DRS train we're often 2-10 seconds apart but the gap changes wildly. This is because of the fuelling strategies we both did were wildly different and I was significantly faster at the end of each stint and even in the final stint, you can see me rapidly close when he didn't get backmarker DRS, even though we were on the same tyre strategy (albeit offset by 1-2 laps on pitstops)
