Today we verticut the greens, so they may be rolling a three.
Verticutting is the process of cutting vertically into the green to
promote horizontal growth, reduce grain, and reduce thatch.
Last week we cross shatter tined (see below) the greens.  That
process of aerification allows the soil profile to vent, which
 allows proper gas exchange, reduction in hydrophobic soils, and
an increase in pesticide efficacy during times of heat stress.