Use The Force Young Bushman
when you've cleaned up with the first grit .. i.e. can't see the damage, go to the next in an opposite direction ..... in other words .. start tip to toe . and then with the next grit, toe to tip ... and keep woking till you can't see the previous lines
when you've cleaned up with the first grit .. i.e. can't see the damage, go to the next in an opposite direction ..... in other words .. start tip to toe . and then with the next grit, toe to tip ... and keep woking till you can't see the previous lines