I think it might be smart to just up the dosages when your dosages make you stop growing. That is just my opinion though. I think that if you run the same cycle twice and you aren't getting gains than up the dose a good amount. I think some times its better to slowly build up the dosages.
But I am no expert that is just my opinion. I figure if you are blasting and cruising things might be different and you might have to keep raising dosages at a higher level than guys who take time off. In order to keep your growth happening. At the level you are at right now though if you got a nutritionist who knew what he was doing and he gave you a good diet plan to gain more lean mass it could possibly make a big enough difference to where your dosages might not have to be raised so much as fast. I don't know what your diet is like it might be great. Im just throwing random thoughts out there.