You guys didnt understand the question.
He is not asking is it ok to start juicing and doing a test only cycle after a year of natural training.
He is asking are the gains made from a test only cycle equivalent to those training naturally for a year.
To answer your question it all depends on the person. Some people have shitty diet and training and only gain a couple of pounds which they could of done naturally. Other people put on a good amount of weight say 12 pounds of muscle with pct. This corresponds to roughly a year or so training naturally.