18 pounds in a 4 week cycle is simply amazing for any AAS, legal or otherwise. Congratulations on your success.
It reasons that you respond well to lower doses of 1-test so I would definitely recommend T-1.
- It should be the goal to ellicit response at the lowest dose possible and T-1 would deliver on this. When dealing with anabolics more is not necessarily better...
- T-1 is cheaper and makes for better logic to assess a product for the lowest price possible. You may find that the inconvenience of applying a transdermal twice per day surpasses the need to grow. JMO...
- The added benefit of the 4-AD will be more conducive to your overall bulking.
If you are set on 4 week cycles, which are definitely recommended, you can squeak in another 1 or 2 before spring cutting. Of course this depends on when you finished the 1-AD cycle. Then I recommend switching to a T-1 Pro for that final summer sculpture.
Chemo