I don't know how I missed this thread for so long but I did. The function of this web site is for you to talk your troubles out and for others to know the answer to provide it. Don't worry about venting because many do. I don't know the difference between the blockers, but you can transition without them and still use hormones. You may still feel the emotions that the blockers help with but blockers weren't available when I transition so we only received hormones. The other issue is development might not be as fast, but there will be development. On the other hand, even without blockers, some people seemed to block on hormones alone and developed feminine bodies quickly. I don't see where being unable to use blockers should be a major issue in transitioning.