2012/11/14 Olly Betts <olly at survex.com> > > But it sounds like your clino has numbers on from 0 to 180? Yes, that's common on topofil boxes to have 0° up, and 180 down. Actually a good way to avoid sign errors on inclination. -- Luc Le Blanc http://www.speleo.qc.ca/Auriga