I have been doing A/B comparisons of RRL with my homebrew (distilled water with about 10% isopropyl and a few drops of detergent - no photoflow in the last batch). I must say that after 50 or more cleanings I don't hear any significant difference. This is not a knock on RRL products which seem to do an excellent job - but so does the homebrew.
One difference I did note which I would be interested in comments on is that the homebrew seems to disperse more easily on the record. A few drops wipped with the record brush dissappear into the grooves. The same amount of RRL seems to bead up more and sit on the surface. Has anyone else noted this? Again, I doesn't appear to matter since RRL does a good job. On dirty records, I have taken to doing a double cleaning with my homebrew first then an RRL rinse. I think the power of the vac is more of a factor in sucking out the dirt ... just my opinion.
One difference I did note which I would be interested in comments on is that the homebrew seems to disperse more easily on the record. A few drops wipped with the record brush dissappear into the grooves. The same amount of RRL seems to bead up more and sit on the surface. Has anyone else noted this? Again, I doesn't appear to matter since RRL does a good job. On dirty records, I have taken to doing a double cleaning with my homebrew first then an RRL rinse. I think the power of the vac is more of a factor in sucking out the dirt ... just my opinion.