Just wanted to say that the EZ Leveler 2 is da bomb. It makes leveling the NN5 a snap.

Here is my setup in order from how it is connected.

Tri-pod
Markin Ball Head
Arca Style Quick Release plate
EZ Leveler 2
RD12 Rotator
NN5
Arca Style Quick Release System
Arca Style Quick Release plate
Canon 40D

I have 2 Arca Style Quick Release plates. One is attached to my 40D and other one is attached to my EZ Leveler 2.

I use the Ball head first to make the major adjustments to the level and then use the EZ Leveler II to fine tune the adjustment. It is simply amazing.

Cheers