I have two Amati Keel Clampers. 

They are very good. 

However, many times any modeler needs to have the keel of the ship model aligned at thwartships*. 

* = At right angles to the fore and aft center lines.

So, I fastened a cross test level to the beam of the reel clamper.

The cross test level was simply secured to the beam with two screws. Since it was in a fixed location, that did create a problem. The problem was that the keel clamper has two moveable clamps to accomodate any size /length keel within it's capacity. So, there could be an iterference at times.

This problem was solved by developing and fabricating a moveable and removeable mount for the cross test level . This allows the cross test level to be placed in any position along the beam, and locked with a thumb screw.

Hence the title ( improved).
Works like a charm !
Jerry Glickstein