Seems like that since you're holding the Omega in your hand, you can write a lot better review than most other folks... I'd take it out in the field side by side with your Redfield in different conditions - like morning/evening and again at midday full light - and check out the resolution, clarity, and light transmission. Print off a chess-board pattern (uses a lot of black ink!) on a piece of paper, or use a real chessboard, set it out there at 100, 200, or 300yrds and look at the pattern in the scope - low resolution scopes (high distortion) will make the checkerboard look like a grey page, instead of clearly demarcated black and white squares.
And the reality is that it's really not that hard to mount and zero a scope, so if you wanted to try the new one, you're not out anything except a few balls/bullets and a bit of powder. Consider that to be your cost of entertainment value. Even if it doesn't tickle your fancy, you can put the old scope back on in a matter of minutes.