Four winns V Series Owner's Manual page 198

are swift, you should use spring lines. The stern spring
line leads from the boat's stern cleat forward to the
piling or cleat on the dock. The bow spring line leads
from the bow cleat aft to the dock.
If you are mooring your boat in a slip, bow and spring
lines, port and starboard, will keep your boat in
position.
Note: If tides are a consideration, be sure to leave
slack in the lines to make up for the rise and fall of the
water while your boat is docked.
Figure S3: Mooring Lines
Pre-Launch and Underway - Section S Owner's Manual Page 196