Anytime I see someone using an asphalt roller (even a small one) on a lawn, I just wince. Compaction is the worst thing you can do to turf and soil.
Aerate. Aerate. Aerate. Give the soil a chance to move around and level its own bumps.
Aerate. Aerate. Aerate. Give the soil a chance to move around and level its own bumps.