I recently moved into a new house, and when I walk on certain floorboards near the turntable (which sits on a pretty sturdy bookshelf), the turntable skips.

Wall-mounting may be difficult, and I was hoping to try some isolation feet/pads first.  Does anyone have any suggestions?  I have seen Herbie's Tenderfeet (http://herbiesaudiolab.net/compfeet.htm) and Vibrapods (www.vibrapod.com) discussed, and was wondering if anyone had any experience with these products or other similar products.

Any help would be greatly appreciated.  Thanks.