Here is a goal: How to cut away excess grip from a fresh grip on a skateboard?

Which way makes more sense to accomplish this goal?

Choices: -- Use chalk to outline the skateboard and then a boxcutter to cut near the edge of the wood and remove the excess grip -- Use chalk to outline the skateboard and then a boxcutter to cut through the edge of the wood and remove the excess grip
Use chalk to outline the skateboard and then a boxcutter to cut near the edge of the wood and remove the excess grip