Just doing some experimenting tonight. I set both OMB and LS to the computers onboard sounds and picked English Waltz from the PSR2000.
I noticed on LS that on variation C there is an odd drum sound not present on OMB. While LS plays the C ending correctly slowing down gradually OMB immediately jumps to the slow speed when the same ending is chosen. It appears to be jumping the gun as far as any speed changes.
So here is one tiny example. I know there have been others, but this the first time I did it as a controlled experiment using the same sound source.
Here is another that had happened to me before which shouldn't make any difference what sound source I was using, or could it? On this particular style, don't remember which one, on LS wrong notes were played in the intro, whereas OMB played the correct notes.
So, any comments?