To make the grapple attachment as useful as possible, I'm asking for your input to help fine tune it as an all purpose design. There are lots of variables that can make them better at one task than another. Geographical location alone will have a big effect on what you would use a grapple to do.
Even just mentioning what specific uses you would have for a grapple will be helpful. Stone work? Brush clearing? Log processing? Etc, etc, etc.....?
For a frame of reference, this design is slated to take the place of the fork tines on the Artillian fork frame to capitalize on its strength and to save weight and cost. And of course, it will be optimized for subcompact/compact tractors.