The race at Zandvoort was chaotic early on as rain fell heavily on the opening lap.This led to contrasting decisions up and down the grid to either pit for intermediates or stay out on dry tyres.Mercedes decided to keep both of their drivers out on the slicks, waiting until Lap 3 to stop.It was the wrong call as Sergio Perez, who stopped at the end of Lap 1, was running 10 seconds clear at the front of the field. Hamilton ultimately recovered from outside the top 10 to finish sixth.Reflecting on his Sunday, Hamilton said: "I feel really good. I didn’t…