I have the same projector as you (Zenith 895 Pro). I also started out with the Omega 1 too and then upgraded to CS-2 SDI about a year ago. It took me some time, but I eventually created a custom rez (~560p) that I'm happy with. (IMO, anything close 720p is too much for this model.)
Anyway, the CS-2 is not bad. You will see an improvement over the omega one for sure. The CS-2 does have its quirks, but I've learned to live with them for now.