Anyways, the question is could I, or maybe should i, do a re-lap or just leave it as is. I am planning a liquid cooled setup in a couple of weeks so just wanna get ready.
As B-Unit said, you should probably consider lapping your cooler esp. if you've done the razor blade test on the IHS and there isn't any concave/convex deviation from flatness. Your thermal paste will fill in the microscopic gaps but not macroscopic ones caused by lack of flatness beween the IHS and the cooler.
Also lay off that high-calorie stuff you're using in the picture - that'll OC your waistline, not your CPU