practice kit; practice board; practice partner; training partner
measuring by feel; adjusting by feel; doing by feel; adapting to the situation (one's strength, strictness, etc.); making allowances; using discretion
all; everything; entirety; absolutely (not); (not) at all; (none) whatsoever
completely; thoroughly; decisively; unsparingly; beyond recognition; until there's no untouched (undamaged) part
opponent; adversary; the competition; the other side; one's enemy
to make a foursome; to have the whole gang (crew, group) together; to have the full lineup (of players, performers, etc.)