If it sounds 'great', everything is ok?

I've not noticed that AS has much affect on the apparent L to R location of images on an LP, but I confess I never paid much attention to that when setting AS, because imaging is more about azimuth adjustment, in my mind.  No argument here.

Dear Elliott, I cannot find where you might have written about the amount of AS relative to VTF, and I do see where you described how you arrive at a suitable setting, using a grooveless area on vinyl. Your method as described would be unlikely to arrive at an amount of AS very near to or equal to VTF. So, mea culpa. My mistake.

I would additionally remark that since the skating force is a result of friction between stylus and groove, I would prefer to set AS while the stylus is in the groove, because the friction force in a groove is likely to be different from the friction force on a flat area of vinyl. And I do it by ear not by watching the arm move toward the spindle. However, I know there is a school of thought, including some highly respected audio professionals, that recommends your method, so I am in no position to say I am right and all of them are wrong.

Just one teeny, weeny thing: Back up the thread, Elliott recommended to set AS to equal VTF or some high percentage of VTF.  With all respect to E, most agree that the AS force should be set to some small fraction of VTF.  In another concurrent thread, you can read where Mijostyn has calculated that AS should be precisely 11% of VTF.  I am not necessarily in agreement with his dogmatism on the subject, especially since he built a Rube Goldberg device to measure AS that none of the rest of us has, but I do agree that he is in the ballpark.  (Wally make an AS measuring device, too.) There are a lot of ways to set AS, but what I do is to first listen to a representative LP without any AS.  I typically hear distortion in the R channel with no AS.  I then add AS in very tiny increments only until that distortion disappears.  So you could say I do it by ear.  But VTF = AS in magnitude is definitely too much AS.

One problem I have with tonearms that have a dial setting for AS, usually marked in numbers from 0 to 5, or something like that, is that we don't know what those numbers mean.  The dial setting is typically found where AS is done magnetically. Do the numbers refer to "grams" of AS?  Or are the numbers to be correlated with grams of VTF, where 2g of VTF is to correlate with setting the dial to 2. Because 2g of AS, which is applied at the pivot is not equal to 2g applied at the headshell.  To me this is another reason to do it by ear.

Having over the decades occasionally found that I had been happily listening to a system that was later found to be out of whack in a major way, I would say the short answer to the OP is "no".  But some imperfections of set-up or function are OK to leave alone.  Or, don't worry; be happy.  As time goes on, you will chip away at what you have in search of the elusive quality known as perfection.  They say Michelangelo could "see" his images even in a virgin lump of marble.