Chandra Lagna

Before reading your courses I used to read a lot of Barbara Pijan's stuff on BPHS. She had quite a large section on chandra lagna that goes into quite a bit of detail. I remember searching in your courses for something similar but only really came up with the "gochara from the moon" course which more had to do with transits from the moon. 

I thought chandra lagna is interesting because I have Rahu in the 7th from the moon, and I have dated mostly foreign women. So thought there might be some merit to it.

Do you use chandra lagna at all, or have you found any usefulness or accuracy to it? Do you have a course on it that I missed or plan on making one?