I did do a search on this and while I'll admit I didn't wade through everything I found on the subject, what I did find seemed only incidental mentions on the topic. What experience do some of you TBers have with the Auralex GRAMMA? Is it something you use all the time? Is it something you use only on occasion? Under what circumstances is it used? Does anyone use it all the time and if not, why not? Do you recommend it? Thanks.