Boss VF-1 Effect Processor

hiya all,

i've been eyeing the VF-1 for awhile, and i finally got one.  boy, 
does it sound great!  i luv it!

anyway,  i'm running the VF-1 through an effects loop.  Out of the my 
mixer's effects send i plug into the VF-1 left input.

Is it normal for the Left AND the Right LCD meters to register an 
input?

I'm assuming that since i'm inputing in mono that only the Left meter 
would show input.

Also, the Right meter is showing less input.
To make it even (on the LCD meters) I have to raise the level of the 
right input(from the input knobs) a higher level than the left input.

Is this normal?
Should I even bother setting the right input?

Any help would be greatly appreciated,

e k jedisax