I see. So would a round house or rectalinear with rounded corners be more stable=20 than traditional box shapes? Even those rare wavey shaped houses? Colin -- cdb, colin@btech-online.co.uk on 8/02/2011 =20 Web presence: www.btech-online.co.uk =20 =20 Hosted by: www.justhost.com.au =20 =20 =20 =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .