Sure, that cycle should give you some great results. Just keep in mind that how well you do, and how much of your gains are actual muscle, are going to come down to how good your diet is. If you are working hard in the gym AND in the kitchen, you will be able to gain some pretty intense mass on that program. The tbol wont have you holding as much fluid as dbol and the risk of estrogen related sides will be a little lower. The only change i would make is to reduce the adex from .5mg ED to .5mg EOD. If you find that you need more, you can always use more, but for mass gaining, at these doses, I would think that .5mg EOD would be the very most you will need. Remember than estrogen is helpful for muscle gains so you dont want to wipe it out totally. 

PCT will start 3 wks after your last shot