If the base coat fits well and provides a good base for softer wax, go for a wax that suits the water temperature you are surfing in.
At most surf spots on the Atlantic coast, for example, the Warm to Cool Wax does a good job.
Again, take the thin side of the block and work the wax in circular motions over the entire diamond pattern you prepared in the last step. Here you can work with a little less pressure than when waxing the base coat.
It is important here that you work the wax in everywhere where you have created your base coat before and small wax dots are created on the surface.
Check afterwards with the flat of your hand whether your board now offers enough grip for your taste. If not, then repeat this step again until you are convinced.