I rebuilt one of my adapters to let it be both a tilt adjuster and lenght adjuster. It works very well but it's very sensitve to adjust it.
Here is how I did it:
http://astrofriend.eu/astronomy/proj...or.html#part08
The cone that holds the adpater in another place is a bit weak to hold this heavy DSLR camera. Have to tight it firmly to not get problem with hang.
/Lars