Parent trees in ground has few late unripe figs , cuttings first year in pots are productive WHY?

  I took cuttings from 2 different figs One was killed to the ground 2013 and 14, many suckers regrew, about 12 stems, some 12' tall,  all survived 2015 winter but this year bore a few figs to late to ripen.  This variety seems to be  identical to my 2 chi hardy and a tex everbearing that also bore figs as a  first and second year as did the first year cutting from the above tree.  The present owners remember the productivity from a few years back, the above tree  trunk was 11‘ in diameter and bore many hundreds of figs which the birds ate because no one knew they were edible. This tree is 200' lower elevation and is in an area that seems to have 3 weeks longer growing season.that I do. As a note I cut the many shoots back to 6, to see what happens next year unless we get another polar vortex -5 degrees.
  A second variety is in ground that the former owner said froze back to the ground each year but regrew to bear figs late, but they ripened.  This year and last the parent fig patch,  ( now very neglected) had many shoots spread over 4' x 6' area, bore a few figs to late to ripen this year’ My one year potted cuttings all bore 3 to 6 figs each that ripened.  This variety may be brn turkey..  
  WHY didn’t the in ground figs produce?   The present owners have asked me and I have no idea why as I am new to fig culture.  

Bill e, catonsville , md

It's going to be very difficult to know why they didn't fruit in time.  It could be issues with fertilizer, water, late freezes and on and on.  Some fig varieties will freeze to the ground and then grow back the next year but not fruit.  Typically if they don't freeze to the ground this winter they'll fruit next growing season.  It might be good to protect both trees - theirs and yours so you minimize dieback this winter.

Rc  thanks for your comment.  One is neglected, my cutting was 1” dia. with 1 summer growth, the parent was ¼” –3/8” dia .   The other at an semi abandoned  house may have been just overgrown, many shoots from the base.  Both new owners are interested in what can be done

I've seen a theory that states a potted tree is stressed more than an in-ground tree and is driven to propagate (ie produce fruit) quicker.  An in-ground tree doesn't feel the stress to propagate and puts all its energy into growth.  Just an idea that doesn't necessarily account for any other factors.