SwingsitlikeHogan
Major Champion
Here's a simliar way of thinking about it. On every hole just get yourself on or somewhere around the green in 'regulation'; practice your short game so you get up and down from on or around the green in two about 50% of the time - and you'll be playing to 9.
On or around the green in regulation 50% of time and the rest on or around the green in no worse than one over regulation; then up and down in two 50% of time - you are playing to 13.5 Easy
On or around the green in regulation 50% of time and the rest on or around the green in no worse than one over regulation; then up and down in two 50% of time - you are playing to 13.5 Easy