It a good strategy though, so far it working for you for now, but I think this is working base on what you have in mind in making your investment, maybe you're looking at the long term, so assuming we have a Bear market that could last for over 3 years , what would you do in such situation?,
because this won't work for someone that wants to cash out his money in the next 3-6 months it  won't have the patient.