BLACK PUP BIT MORE FORWARD PICK,S THINGS UP LITTLE BIT FASTER BUT TO BE HONEST I,M IN NO RUSH WITH THEM BLUE PUP GOING TO TAKE BIT LONGER TO MATURE BOTH TRAINING WISE HAVE BEEN VERY GOOD IN ALL I HAVE ASKED OF THEM FENCE WORK, SHEEP, COWS, RECALL,ECT ALL BEEN GOING BETTER THAN I THOUGHT WITH THERE BEING TWO BUT THERE DAM IS VERY LOYAL AND ALWAYS AT MY SIDE SO HAS HELPED AND MY HALF X HE KEEP,S THEM VERY FIT