If I use cello rosin for my violin, how much less should I use?

It really shouldn't matter if you over rosin. I never had rosin that said it was just for cello. but I alway used dark rosin.I used enought like you said to make a nice loud sound also. I can't stand to play with a synthetic haired bow, also. Only nice horse hair with plenty of rosin. I never heard that a person could use too much.My college teacher never said anything about over using it and I used plenty.