Kieren,
 
It's PERMA COMB from Perma Comb Systems  22543 Ventura Blvd., Dept. 2 Suite
222-A Woodland Hill, CA 91364  (818) 224-2191.  Never used it but have seen
it, real tough stuff.  It can be high speed extracted without uncapping and
no blowouts.  Kinda pricey though.
 
Brian Tassey
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