Hey guys, I did a search and saw these vests mentioned once. How are the bass shakers in these vests? I figure they have less punch than the more expensive shakers but could you just use more of them? Here is a site selling the vests for 20$ http://www.oshealtd.com/interact.htm They do not manufacture these anymore so you can get them cheap. Are they easy to remove from the vests? Are there two per vest? Do you think it would be better to buy 3 of these vests for 6 shakers for 60$, or should I just spend the money on the shakers made for home theater?