Hi Andy,
Alignment, as near as I can tell, doesn't change. Its quite heavy-duty, with a smooth 'click-stop" action.
The T-Rex is, as you correctly assume, NOT part of the sale
. They are made in Japan by/for Kokusai Kohki (
www.kkohki.com) and are now available from A.E.C. in SA.
Merry Christmas,
Peter