If it doesn't shoot right or if you just want to make your trigger pull shorter. not recocking and skipping are 2 things that indacate you need a retiming
if it choots and recocks properly, you still need to tet for blowback. If the paper moves then there's blowback and you should lengthen the hammer lug a little more
it works!
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"He who makes a beast of himself gets rid of the pain of being a man." -Dr. Johnson
the ultimate test is pulling the trigger slowly and releasing it slowly... like 1 mm per second slow.
doing this will allow you to feel when it actuates, when it recocks and if the sear gets stuck when the trigger returns. it's a good way to test your timing as well.