Couple things come to mind. My first question is this...what weight can you easily maintain? Meaning, IF you do put on your 30lbs in 6 weeks can you maintain it? If it were me, I wouldn't be able to, not without even more drugs. My second question is how long did it take you to lose those 12 lbs from your last cycle? 3-4 weeks? Water or not I'm not a fan of fluctuating body weight like that. In a sense you will have gone from +12lbs, losing 12lbs and back up 30 + lbs...then possibly losing some again. IMO, that is really hard on the body, especially in that short amount of time.
Also, I think there is a point when using AAS that the body needs a break. In other words the gains start coming slower and slower..even if you keep raising the dosages. You will know when this time comes, your body will tell you. If you really want to make a run at 230+lbs. my advice would be to give your body a break for a while and get a plan of attack...diet, workouts, etc. I'm betting you can accomplish this goal with less drugs as well, it may just take a little longer. Bodybuilding is a marathon not a sprint. It's good to have goals, though. Either way...best of luck to you and stay safe.