Dres's plants have been gorgeous from the get-go. As far as defol goes... In my opinion, asking if you should or not is one of the worst question ever to ask in a journal. Everyone has an opinion. The best thing to do is read a ton of journals and make a decision based on what you see and read. It's a situational decision in most cases. For example, if you have problems keeping humidity down, that's a good reason to open up for airflow. If you have a problem keeping humidity up, the extra folliage will help keep the humidity up. There are just too many variables to consider. Many who chime in will not spend the time thinking about your specific set of circumstances. My impression is, if you ask about defol you get so many different opinions that it will make your head hurt!