Saint Vincent, I've looked at the data in Eskapa's book -- especially the graph of one study on p.29 -- a bit more closely today and here is the approximate data:
Participants: 148
Successful patients: 115 (78%)
Average pre-TSM units: 37 (100%)
Average units after 9 months: 9 (just under 25% of initial 37 units)
The approximate data month-by-month:
Pre-TSM: 37 units (100%)
1m (30d) 27.75 units (75%)
2m (60d) 25 units
3m (91d) 20 units (> 50%)
4m (121d) 17.50 units (< 50%)
5m (152d) 15 units
6m (182d) 14 units
7m (213d) 13 units
8m (243d) 12 units
9m (274d) 9.25 units (25%)
10m (304d) 9.25 units
11m (335d) 9.25 units
12m (365d) 9 units
I graph the approximate data below:

As you can see, an average 25% reduction in units took place by the end of the first month (30 days), a 50% reduction in units occurred by about 4th month mark (or around 105 days) and an average 75% reduction in units occurred after about 9m (274 days). The "cure" in fact appears to be just that: a 75% reduction in units (from 37 to 9 per week in this study) and took 9 months on average.
I may post the above in the general TSM discussion forum.