I was going to use Havoc for my first cycle and had everything ready then at the last minute decided to run h-drol instead because of all the gyno problems I read about. There are gyno problems posted as far back as 2007.
This is not the mild compound people will lead you to believe it is. It works but there are a lot of people who do everything right and still get gyno, even with a SERM.
Were you totally unaware people were getting gyno before you started your cycle? If so I'd say your research was incomplete.