From: "David V. Corbin"
<dvcorbin(a)optonline.net>
---snip---
That of course will involve replacing the h-plate later...Oh well...
It only took me about two weeks to get the other one [on the other unit]
in....
Hi David
Once you've fine the right size of flat bladed screwdriver
to jam into the slot of the H-plate, you'll see that it is
actually quite easy. One should be able to do is in just a
few seconds. You do need to manually reset both sides to
be in the same state so the angles are the same.
Dwight