Yeah, thats fine, just keep in mind total volume. So figure if you are doing 500mg of test a week, and 300mg deca, you have either 1 shot that is 2ml a week and one that is 1, or both are 1.5ml. For some guys thats slightly painful in delts, and too much for most bis/tris so you'd have to stay with quads + glutes as your main inject points. Not like thats a problem with just 2 injects a week, but thats the only downside to it at all