Of the lenses you have, the Comparon will do best in the range you're interested in. According to Schneider's propaganda, it is better than the Componon for enlarging 2x - 6x, i.e., for shooting at 1:2 to 1:6. And the Componon should be better than the equivalent Symmar down to about 1:20.
I know, I'm speaking Schneider and your Sironar is a Rodenstock lens. But you can translate.
Taking lenses intended for shooting at magnifications lower than 1:1 are optimized for "large subject in front, small negative behind." If one is used above 1:1, it should be reversed to have "large negative in front, small subject behind." If you're working below 1:1 there's no reason to reverse the lens.