None of them convert to progesterone. They convert to progestin. Progestin, when it reaches the progesterone receptor can attach itself to it and perform just like progesterone, because it has a shape very similar to this hormone.
No real para has been made for some time, most copies are just tren acetate. Others are olive oil....
No, trenbolone doesn't convert to progesterone, progestin or any of the above. It binds the PR as trenbolone. So, YES, trenbolone is trenbolone just like test is test.
But I really don't understand this whole karma thing.. What is this? A popularity contest? What are you supposed to do with your karma points? Buy ppa with it?