Nick,
My EQ6 is the same. Very tight with Alt adjustment. I found that if you back off both bolts and move it manually making sure you are a little higher than needed, then use the top bolt to move it down a fraction. Trying to use the bottom bolt to lift the head it too hard.
The theory is if you are using the mount from the same location you should only have to adjust Alt once, but when alighing with programs like Alignmaster, you do have to adjust Alt each time.
Clear skies
Rod
