It seems like the more I hunt with the stock coil on my Cortes the less I like it. Right now I have a 5.75 on it. I have an 8 concentric donut on my Golden Saber. Since the Saber is really not deep I wonder if I should put the donut on the Cortes and the 5.75 on the Saber. I also wonder if this would make the Saber super shallow.