My experience dating back 25 years is that the LP-12 doesn't like any sort of wall unit. I still use my original Sound Organisation table from the 1980's which is a simple stiff lightweight steel frame table which holds only the LP-12. It has spikes on the legs. No problems on my hardwood floor. I've experimented with other things such as top of equipment racks, wall units, etc and it was a disaster - skipping just as you describe. I concur that a stiff lightweight steel frame wall shelf is also a proven alternative.