breaking down hog leg

You can break it down as much as you want.
But, just sawing off the hock will certainly make a difference in overall size.

~Martin

Cut the shank off.  Here is the whole leg:


Backfat removed:


shank removed:


This is the whole ham.

If it is still way too big, then you can cut it in half like this:


or, you can remove the sirloin top on one side:


to remove less.  That exposes the femur bone, just run your knife right down it and remove it.

Any further processing of it would result in sectioning it into it's top, bottom, sirloin tip and eye sections, as indicated on this center cut ham slice:


hope this helps!  The main part of the leg is its center slices; at each end it is wastier with bones and fat and inner hock.