On Sat, 16 Nov 2002, Olly Betts wrote: > * cavern: if "*infer plumbs on", don't infer a plumb if the clino is > +/- 90 degrees, but the backclino isn't (and vice versa). I guess I'm missing something. What does it mean if the inclinometer reading is 90 degrees but the back inclination is not 90 degrees. (I.E. When do you meaningfully get this case?)