By the way why don't we use the same system as ATP scoring?
Winner of this event only gets 500 points, ATP 250's only get 200 points etc.?
That's the old ranking system.
This was discussed and voted upon in the close season.
TT gives greater weight to Challengers and lesser events to enable newcomers to rise quicker and to reward consistency rather than just winning the slams/masters.
The logic is that it is probably more difficult rather than less when predicting the lesser events.