And one more note... if you already have 25 points and 1 power before your 1 year anniversary in SBF (from your joining date), you will get 1 more power which become 2.
This was what happened to mine when i already got more than 25 points to qualify for power 1 before my 1 year anniversary (my joined date was May 2007)... and then i got additional 1 power when the system 'celebrate' my anniversary joining date.
Hope you get a clearer 'understanding' how this system works.
Best of regards!