1cc of test E dosed at 300mg E3D will yield about 700mg of test per week. .75cc's of tren ace dosed at 100mg shot ED will yield about 525mg per week.
Regardless of dosing, you say you would shoot 1cc E3D of test (a little over 2cc's per week), then ask if you should inject the test ED as well (you can, FWIW), but you say you'd use .5cc's ED if you did that. That equates to 3.5cc's per week.
Why do you think you should increase the test to 1200mg per week? Do you really think you need 2+g of androgens per week (given your 1200/625/350 test/tren/dbol doses.)
Which 4 weeks are you gonna run the dbol for?
High test with high tren? Have you used this combo before? Many people see a lot of tren sides come out with this high test.
No AI? No PCT?
No offense, but this cycle is all over the place.
EDIT: 5'9 277 22%bf, 2 years seriously training?
Come on, man. Even at 40, you shouldn't have that high a BF percentage with a clean diet and even a halfway decent routine. Especially after previous cycles.
For your previous cycles, did you run a proper PCT for them? Have you had a hormone panel done recently?