I believe that use of any above mentioned spinners would serve you better than what are you using right now , since they perform the same and are made by same manufacturer. You'd appreciate them especially in commercial settings, e.g. on restaurant kitchen tiles. Multi directional passes worked for me. I've experimented with all of surface cleaners including SX-15, which I I liked the most for its wide pattern. I have to admit that I wasn't always satisfied with outcome despite using good chemistry, agitation , heat and pressure for reason that often times ( with older damaged flooring) you must be extremely cautious, so you don't cause more damage to the cracked tiles. To give you an idea:
My prespray consists of mix of degreaser, enzyme and oxidizer, dwell time about 10-15 minutes followed by agitation with Brush Pro 20 w/ gray brushes.(45lb) I'm aware of the fact that heavy set 175 would do much better to break all the grime. Since the kitchens I service have 3-4 open areas with different levels of soiling I like to use CX-15 at 900-1200 psi as I work with a 2200 psi pump . If you have 1000 psi at hand, you're probably utilizing 850-900 in reality. If you're hitting it with 190-230° heat you've completed cleaning pie circle which should produce satisfactory results.
If you're cleaning and seeing " circle crop" patterns, your chemistry, agitation, pressure or all of the above steps were mot set properly.
There are guys who like to clean at 1200-1500 psi and 240-260° , which is fine , pressure and high heat cuts trough the grease in faster speeds, thats for sure.
You'll see big difference switching to spinners and it's a great time to get one or two right now.
Good luck