Firstly congratulations to WGT for attempting to address this issue, whether what they have done is having the right effect is obviously debatable.
As several have mentioned, if we all play from the same tees then this negates the majority of the sandbaggers arsenal, I dont see why anyone should have different tees if you are in any form of matchplay.
The ongoing issue is why wont many of these "sandbaggers" tier up - simple, just advancing levels they are still elligible for the best equipment and therefore no incentive and they have a huge distance asvantage. Simple fix - make the equipment tier based instead and play from the dsame tees. Yes the horse has well and truly bolted but moving forward this should provide the incentive.
I personally don't play for credits and I am just a recreational player, but I want to play as well as I can and for me acheiving a higher tier is my reward. Others obviously don't see it that way.
For me the problem mainly exists with the Level 90+ Tour Pros and below, and only play multiplayer games but if its not for credits, does it really matter? Just enjoy the game, after all, thats all it is at the end of the day.