Its really not easy, the whole pm/boob thing.
I read forums like this over and over. I take pm for short times but not long enough for budding. I gain weight in the breast area, but male style form.
After a lot of reading I think the dosage thing is not so important as the continius taking pm. The body need time, but after a time the boobs grow fast, thats the expierience from many users in forums like this. Even at 1000 pm many get big boobies. (ainterol forum)
The guys with high dosages (more than 1500pm a day) seems not so successfull.
So Im carefull and will continue with 500 pm and ramp max to 1000 and go a slow way.
One crazy thing that I read is, from many the boobies dont stop to grow even after stopping pm