Damian, I was faced with this exact issue a couple years ago. We have very heavy use on our tee which is only about 13,000 sq.ft. So you can imagine how often they were returning back to the old hitting areas that were too sandy. My other concern was keeping the tee surface level. I stopped topdressing the tee daily. I trained the pro shop to use up every sq. inch of turf possible before moving the hitting zones back. Then once 1/3 of the tee had been used we came in with our deep tine aerator and aggressively aerated that section. Drug the material around to smooth the undulations and by the time golfers returned to this area it was healed in pretty good.
What you should know about our tee is that is was built with a 4" sand base then sodded. My problem was that the sod came in with soil/clay so aerating is actually breaking down that layer and mixing into the sand for me creating a somewhat sand soil mix. I also fertilize every 6 wks with 5 bags of Bio Flora crumbles which is like crack for zoysia! If you have any other questions Id be happy to chat. Email is
rnsears@ccmo.net