enhance

Hi detailing experts! I am using some enhancer to try and remove swirls. I've worked half the boot lid on an SL, for about 30 minutes and you can see the results so far. The coat is much smoother and giving a richer reflection. However, there are still swirls. Do I just keep going?

Like I said...is it possible and is it safe for the diesel engine to use a different ECU to enhace the performance...I'm getting my car in a few days ..I thought I'd ask you guys