So you topped #3. I would assume it is the same age as the others. If so I would also be interested in knowing what kind of yield you get from those lower buds on the plant you topped. I too have heard not to top lowryders but several people have told me they have done it and it worked out fine. The top you took off: was it ripe and how far (days) into flower were you? Oh by the way I didn't answer your original question. Looks like two weeks should do.