ORIGINAL: Valve
You can't really run these things without foams. This guy talks like he knows everything but I haven't seen him make a logical suggestion yet.
Yeah , looking back on some of his posts he seems to get snippy and snotty when someone dose not see things as he dose. but any-hoo who cares. take a look at his profile , 13 years building but only 3 operating ??? Humm ?? the air plane one looks kinda weird too