I do like that approach Ian, and makes sense. You get a quota of good vs. bad. If you make a mistake, you are not done for yet, it gives you hope and the need for focus on the remaining holes.
My approach to breaking out of a plateau is to know specifically what is keeping you there in the first place, practicing just that 1 aspect until it becomes the best part of your game.
You won't forget about the other items, they should make a comeback easily enough when you return, and they actually may enjoy the time off and return stronger, but if you do see degradation in previously strong areas, return to a normal practice routine will eventually even them out.
Start with looking at trends in your scoring. You have something there that is causing you to have a 8 foot putt for par for about 1/2 the holes (just a guess). Figure it out.
* Is it that you get into trouble off the tee for those holes, get in the rough and have to fight your way to the green where you are then forced to make a great chip to the hole and you are averaging it to that 8 foot position?
* It could be that you just get into the wrong places on the green for 1/2 the holes. You are faced with having a difficult time getting it to that tap-in for par.
* How about the fact that you are not making enough birdies. Birdies solve a lot of problems. They come mostly from approaches that are the perfect distance to the hole. It could be that you are not picking the right
clubs.
Keep going here, there are so many reasons, and combinations that I am stopping.
So the idea here is to determine what it giving you this problem, and fixing it.