Vedic has a reputation for making very accurate specific predictions. How much this has to do with the use of sidereal vs. tropical I don't know. Heavier emphasis on the ascendant may play a role, but I'm speculating here based on personal experience with mine-- Western astrological influences affecting my rising sign tend to affect me more than those affecting my sun sign, and I can imagine Vedic knows something about this us westerners don't. ^-^