Im getting ready to compare the standard with the Ultra. Im still breaking in my barrel with the ultra though so I havent started the head to head comparison yet. However, I can tell you while the synthetic handi is lighter and easier to tote around. The ultra is much heavier and easier for me to hold on the target, make my squeeze an follow through.
My standared is a tackdriver though I have done 2'groups at 200 yards on a good day with its 6 pound trigger. I feel the ultra is capable of that out of the box with just what I have seen so far.