Just a historical note regarding Kepler's (non-Ptolemaic) aspects: these were proposed by Kepler (prior to 1630) and were extensively used in astrological delineation by many during the 17th century, including Placidus de Titus, who was perhaps the most famous of the astrologers during that time who used these non-Ptolemaic aspects in chart analysis (see for example, his 2 volume "De Siderum Judiciis", 1660, 1665) Note that it was also this same Placidus de Titus who introduced the Placidus House system during that pre-1700 time: if it is ok to discuss pre-1700 house division formats (like Placidus) in our Traditional Forum, why is it not ok to discuss pre-1700 non-Ptolemaic aspects used by Placidus (and others) in their astrological practice, during those same pre-1700 times??
NOW, I myself do NOT use the Kepler aspects (followed by Placidus de Titus-more exactly, "de Titis"-and others), and I have no interest in discussing them-but I post this, just for the historical record (a reference to Placidus de Titus application of Kepler aspects can be found as a footnote in the Ashmand translation of Ptolemy's "Tetrabiblos")...