<HTML><FONT FACE=arial,helvetica><HTML><FONT SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="0">I'm using 4131's recycled from a previous plane on my latest 90 powered pattern plane on all surfaces. They are more than adequate for power and quickness. I owned but never warmed up to the 821. They never seemed better than the 4131.<BR>
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Allan</FONT></HTML>