Strain dependant. So different strains will grow differently. I prefer strains that dont grow too many sugar leaves as these strains need a lot of work when trimming. These strains can still be bangers thiough so dont throw the whole thing away. Its just about the way that strain grows. Who knows at the end of the day the buds might get so thick they cover most of the sugar leaves. Try and thin the plants a bit more so that they dont grow too many pop corn buds.
Happy growing.