It's theoretically possible, and can work with a noticeable impact however the general idea and principle of starting out with a faster acting substance Orally is to proverbially jump-start the Cycle before IM Injected Substances can fully kick in.. So doable? Yes, feasible and worthwhile? Sure, just not I suppose the "ideal" depending on what you're looking for, you're certainly not fucking up by doing so
I have only ever used dbol at the beginning of a cycle. First 6 to 8 weeks max. Too harsh on your liver to go much longer. And you don't want that extra estrogen trying to course through your body towards the end of a cycle. Your trying to taper down all your doses by then.