Matt, first you need to mop the floor and make sure it is clean. Any hair products left on a floor will haze the finish when you buff (especially that solar oil for cuticles and some of the hair gels that wind up on the floor.) It will be nearly impossible to get a shine with ANY natural blend pad using a 175. Also, is the pad a white blend or a tan blend? The tan blend will swirl almost any finish for the first few times even with a UHS machine until the finish is hardened some. You CAN get a shine with a 175, but you need red pads, white pads, and a little more time. Spray buff will help, but be careful not to overuse it as it can load up the pad. What might be even better for you is to mix a bottle of neutral cleaner and use it as a spray buff. This will help remove contaminants from the floor and allow you to "pop" the shine. Spartan has a great spray buff, but do not get the super spray buff which contains solvents. That one will cause all but the best of pros problems. Johnson's spray buff works well, but it will load your pad and cause scratching and swirling after some time.
You may need to spray clean it with a red pad and then dry buff with a white pad untill you get more gloss. The hair pad will probably do nothing more than frustrate the pee out of you..
The reason is they way they work. You need the heat generated by the abrasiveness of the hair (usually hogs hair) to heat up the finish. This is best achieved with a UHS machine. The hair also adds some natural lubrication to help prevent burning, but it won't really help with a 175.
Mikey, spray buff formulas vary from company to company but most are a neutral cleaner, solvent, finish, wax emulsion, or a combination of any of those. It will actually remove soil from the floor (similar to bonnet cleaning) and give a higher shine. The ones that contain some finish or wax eumulsion will help reduce minor scratches and "burnout". A pro with a good spray buff and a high speed (even a 175 for the GOOD oldtimers) can get results equal to or near that of a propane burnisher, it just takes more time.