The key point is that there is an optimal level near E2=22pg/ml. Anastrozole has a very linear dose response and low dose anastrozole is used to modulate E2 levels. After getting labs, one can very easily calculate the dose that will get near 22pg/ml. Starting dose when on 100mg test ester is 1.0mg/ml per week in divided doses.
The key to success is steady T levels from frequent dosing, as T levels and anastrozole need to be appropriately matched. Weekly injections are too much of a moving target for E2 control.
Many are forced to self medicate.
I think that most would expect all of the active dosing in http://jcem.endojournals.org/cgi/content/full/89/3/1174/F3 to be a disaster as the doses are simply too much for the T levels of elderly men. And the objective of the paper was to look at the effects, not determine anything optimal. And the interest of this thread is concerned with the use and dosing of anastrozole for men on TRT, not old men who are not on TRT.
This research is very good as a dosing reference for hCG as a HRT replacement for LH: http://jcem.endojournals.org/cgi/content/abstract/90/5/2595