Suspended floors? I can see how that might cause an issue with some cartridges and not others. I’m on a slab.Well, what the heck was my problem then? I recalibrated everything a few times, and no matter what, it was always really jumpy. Super prone to footfalls. Whenever it hit the run out groove, it would jump back into the last track, and keep doing it over and over. I'd put the Mofi Ultratracker in, and those issues would go away. I chalked it up to compliance issues. Maybe something else was amiss?