I have two sets (330 & 660) of these racks on berber and loaded down they are very stable. However, they do offer the wall connector and larger feet. The larger feet may actually come with the newer stands. I have the feet but never used them because I didn't like how they looked.
Before I had it loaded with cds I did take the precaution of using some fishing line and a picture hanger nail that was nailed into where the studs were located. This secured it to the wall. After it got loaded about 2/3, I took the fishing line and nails off. Nail holes were easy to fill in too.
Before I had it loaded with cds I did take the precaution of using some fishing line and a picture hanger nail that was nailed into where the studs were located. This secured it to the wall. After it got loaded about 2/3, I took the fishing line and nails off. Nail holes were easy to fill in too.