I do not believe the LMB cleaner would have changed the surface of the ball. Based on the age of the post, I believe it was the old LMB cleaner.......
To my mind that calls into doubt his entire testing regimen.
Yes, It would have been helpful to know the exact testing regimen.
Like if the balls were scanned after sanding with the 4000 before the testing of the product, what type of surface change did the applicator by itself make etc. (I know what I would do anyway to test)
As for the LMB cleaner after thinking about it, There could be away to get that reading. this could apply to all cleaners also
1-If the ball wasn't scanned just before the test, it could have been a little courser than 4k to begin with.
2-If after sanding with the 4000, if there were any sanding leavings/residue left still down in the "valleys" and then the ball was scanned, the ball could show smoother than it actually was and then when the lmb cleaner was used.
The valleys got "cleaned out" and when scanned again, they'd show deeper thus a courser grit. The cleaner didn't actually change the ball, it just cleaned the residue out that skewed the reading.
With the exception of the liquid sand paper reading, to me personally those changes are not that different (4000 +/- about 1-2 µ) and in a real world situation that little of a difference would be unnoticeable to virtually everyone.
storm reacta clean 5000, 2.5 ra (this one is suspect also)
hook it 4300 4 ra
i tac 3700, 7.5 ra
clean n dull 3700, 8 ra
renew it 3500, 9 ra
storm reacta scuff 3500, 10 ra
lmb cleaner 3000, 11 ra
liquid sandpaper 2200, 21 ra