Actually it is you Tbg who is clueless and in denial. If you read you see he goes into both sides of the issue good and bad. If you do not like him plenty of other articles out there. You are buying into bull and don't know what to do. There are only a few co out there that really understand or take the time to design proper well thought out isolation products, SAR, HRS, Stillpoints and a few others. You convince yourself you can get as good if not the best at very low pricing. That it cost nothing to properly design something let alone manufacture it. Then call an article delusional or poorly written or like was written in the 70's, like isolation facts have changed since then. Simply because they point out in an article how little you obviously know or understand. Burn the writer and his article he is spreading unclean thoughts! Like I said you guys are funny.