Hi Frank,

I have not used the 9Z but it should be the same as dasintex described using the 9C.

I tried the V-tail set up but didn't like it because if you were getting close to landing and and was pulling the elev. stick back to flare and then needed to make a turn adjustment you couldn't unless you let off the elev. stick and aborted the flare.
I went back to the two stick method.

I also use the 9C, on one of my divers I leave the sticks centered because I have servos with 90 deg. of travel from Servocity.com

On the other diver I use the sticks pulled to center with rubber bands.

If you have hi-torque servos you may be able to leave the sticks unbanded and hook the linkages at the end of the servo arm and still have enough power to pull the chute down.

Just a few thoughts,

GaryV