I don't know if the #5 Remora is larger or smaller that the #6, but my #6 Remora fits my PX4 SC very nicely.
And I will agree about the Crossbreed being comfortable, but I recommend you look at the White Hat holster. It is similiar to the Crossbreed, but it uses screws instead of rivits to hold the Kydex in place. You can order many different styles of Kydex holsters to fit different handguns with the White Hat.
Vv