Cardio is a fat burning tool in my book. If you are already lean...like 10-12%, I would refrain from doing cardio except for like once a week. If bulking is your goal…id rather save those calories for the sole purpose of growth, instead of burning them during cardio.
Once youre lean, it is simply your diet that will keep you lean. If you are getting way too fat during your bulking process, then your carbs are simply too high, or you are not cycling them in and out enough.
So if you begin to spill over and get too fat and watery, that’s when the carbs gotta come back down, you bring in your “Cardio Tool” ….bang out some mileage on your feet….remove the water and fat off your body for a good 2 days…and then boom, begin your bulking process again. And you repeat the process if you spill over again. Staying lean while bulking is your best bet….