Thanks to all for your comments.
Charles,
I do not have experience with other DIC system to know if I have wide range of effects. I think I have the normal DIC effects, from the crossed (I have Senarmont system) position at one side I get the inverse effect of the other side (I think it is normal on any DIC system). Look at the following to pictures, from a test slide that I received today, one is from the left side and the other from the right side of crossed position.
Rogelio