While listening to a video on youtube with Rok Koritnik about the Vargas, he says that if a planet is bad in the Rasi chart, being in it´s own sign in the D-12 saves it.
("If a planet is in a bad condition, but it´s in it´s own Dwadasamsha, it´s as good as it would be in it´s good sign.")
He doesn´t mention where the idea comes from; my Sun is in Leo in the D-12 so I love it, but is it true?
Staffan
Rok is a very competent researcher in astrology. It's very likely it's something he has investigated and if so, I would trust him.
Unfortunately it works the other way round too, I suppose - sometimes your family drags you down.
Staffan
Rok has also researched early western astrology, where the only divisional chart they really used was the D12 or dodekatemoria. This might be one reason he emphasizes it.
Btw he has a good book about combining solar returns and sudarshana chakra, in his opinion the most reliable predictive method. It's called At the turning of years.