Too much air is when your blower sucks in the neighbor's cat who is just passing by on the sidewalk 100 feet away, causing you to have to stop contesting and clean it out of the fins and off the ceiling. Colin K7FM -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com