I started looking at those also.Can you tell me about the Omega trigger system.
The Omega system is a cheaper to manufacture and more easily serviced fire control group, It employs a single trigger bar, like the SIG, rather than a double bar system like the 75 series. Because of this, the 75 system CAN be made even smoother and more consistent, but the Omega CAN be very smooth.
The Omega is easy to access and can be taken DOWN with only a punch. It can be taken down and parts replaced and put back together VERY rapidly. However, to get the decocker spring back in, I need a watch repair tool to get the little spring end in easily.
OTB, the SA on the Omega is usually better then the 75 series, and the DA MIGHT be quite good.
You CAN polish and tune the Omega system well, but it takes some experience and practice. You CAN by them in person excellent OTB, and they are VERY easy to polish and tune to perfection. Lots of posts about this.