Here is a partial answer to my own question, based on some experimentation: Based upon some recommendations, I tried some Disc Doctor brushes. They are similar to the MoFi brushes, but a little easier to work with IF you are doing some scrubbing while the record is turning on the RCM (which is what I do). I really can't say that they're better for certain...I just find the smaller shape a little easier to work with. I have ordered a brush from Osage (which carries AI fluids) that is like a VPI brush, and that is reportedly a bit better for scrubbing.
In doing some digging into fluids, I've gotten some different answers about the MoFi "enzyme" fluid I referred to in the original post. I was referring to the MoFi Super Deep Clean. Several sources would suggest that it has no enzymes, although Music Direct reports to me that there are some enzymes in it (but not as much as the new Mo Fi Enzyme cleaner), and advises that it is best left on for about 4 minutes. I have indeed gotten better results with the waiting, and the scrubbing.
In doing some digging into fluids, I've gotten some different answers about the MoFi "enzyme" fluid I referred to in the original post. I was referring to the MoFi Super Deep Clean. Several sources would suggest that it has no enzymes, although Music Direct reports to me that there are some enzymes in it (but not as much as the new Mo Fi Enzyme cleaner), and advises that it is best left on for about 4 minutes. I have indeed gotten better results with the waiting, and the scrubbing.