I've been using pigmented polish on mine off and on - tried the Turtle Wax Black Box, which is OK but quite short lived, and have been using Poor Boys World Black Hole of late, which goes on and comes off quite easily. Both have fillers which help to hide the swirl marks. Looks good on an overcast day, but I can always see swirls on a day like Sunday at Brooklands.

I've decided there's only so much I can do with it being a daily driver used all year round, unless I want to spend more money having it detailed. Detailing seems expensive in Surrey but, then again, why should detailing be different from everything else