I have a 75B Omega and the DA trigger pull was quite heavy. I lightened it up by purchasing the SPGK1 spring kit from Cajun Gun Works:
http://www.cajungunworks.com/ultra-lite.htmlI did a little bit of polishing as well of a couple of small areas to help smooth things out some more.
Here are my trigger pull weights:
Before (all stock): 11.5 lbs DA / 4.5 lbs SA
After (SPGK1, polished): 8 lbs DA / 3 lbs SA
I don't positively know if the SPGK1 helped the SA (I think the polishing did that), but the biggest improvement was in the DA trigger pull weight. You can get an even lighter hammer spring, but I personally wanted to minimize these changes and just get the results needed while keeping it reliable enough without any doubts in my head.