Heres my take on high dosed tests. They are great for guys at the high level of cometition, that are using so much test that it is hard to inject it all in one wk. Adding a couple cc per wk of a high Mg test makes taking 1.5g of test along with other compounds, a lot easier. For your average guy though, there are more potential problems. These products can be very painful and cause major irritation to the muscle injected, even with the best brewed product, simply because there is so much hormone packed into 1ml of oil. If you are taking 250-750mg of test, I would stick with normally dosed test (200-300mg/ml)
That being said, any long acting test can be injected one time per wk. Even if you are using Sust at 1cc per wk, you can still get good results taking 1cc, 1x per wk. But to keep your hormone levels more stable, I would always split your injections up into at least 2x wk.
About orals, yes, you can still use your 30mg ED oral Dbol for the first 5 wks.
And yes, your Ai would still be split up the same no matter how many time you inect per wk.