Not an omega, but search "compact long slide" and you might find my thread with pics of the PCR frame with the Matte Stainless slide. Both it and the "semicompact" mix and match worked fine. Haven't shot those combos much, deciding I'd rather the original combos wear in together and prefer to conceal carry smaller options anyway.
Of the 2 swapped units, the Semicompact would offer more utility IMO. A bigger handle and capacity, but smaller slide for the draw and less likely to dig into the body under certain conditions. The excitement even of the 2-tone aspect has waned.
