It is quite pointless to cycle with such low dosages - 300 mgs of testosterone will get you suppressed anyway, but you would not be getting in exchange all the benefits that it can offer you. 400-500 mgs is the sweetspot for most people. Therefore, you would still need a PCT, because this amount of testosterone is plenty to get you suppressed. It would be best to run the perfect PCT protocol - it may seem like a lot, but you need to keep in mind that the better the PCT, the more gains you will be able to keep, and the smoother will be the recovery.