Hi sean 2001;
Good choices. The Remington GS 185 gr +P is a very good cartridge in this gun.
In the Gold Dot, my USP .45 prefers the 185 gr load, since it shoots to POA for me. (I found the 200 gr +P to be less accurate, not sure why.) If both are equally accurate for you, choose the one you can shoot faster, or whichever has the lesser muzzle flash. (The Gold Dot 185 gr has less muzzle flash than the Remington GS 185 gr +P, for instance.)
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"Potius sero quam nunquam."