I've played with the recrystalization of the synovex kits. I actually did it several times and then made it into injectable and a friend of mine used it for a few weeks. he got results, but ended up with itchy nips and stopped using it and started with anti E's. You can't just recrystalize it and pull out the estrogen crystals, both are white powder and I personally don't believe that crystalization does much for removing anything. I've seen all the methods around even the one with the fan where you pull out the bigger crystals and its supposed to be just test.
I finally talked to dazed and bought one of his kits for the other half of my synovex carts. the same bro used it as before with no gyno at all and better gains than before. But IMO its only worth doing if you have no other access to any other test products. I still have it in my fridge for when times are tough.