I frequently use NGC, IC, NonStellar, Messier, and the user object catalogues on my NGC-MAX. In the bowl of the big dipper on my Sky Atlas 2000 chart, I have all the Arp galaxies labeled with an A. Some of those Arp galaxies aren't plotted so it's good to write on a sheet of paper what NGC galaxies to look for. I've programmed several Minkowski, Abell, Kohotek, and IC planetaries in my user catalogue. My NGC-MAX has opened up a whole new world of objects I never dreamed of seeing. I also toured the Sculpter galaxies and the Fornax galaxy cluster last October. In the Virgo cluster it's easy to get lost without a computer. On the downside, I stepped on the cord last Dec and broke my encoder bracket (az). I always carry a spare 9 volt battery because the computer drains the battery. It's frustrating to be out in the field when the computer dies but I'm getting good at changing the batteries in the dark. I'm not sure if I want to set up the NGC-MAX at public star parties anymore. I don't need a computer for Messier objects. I'm glad I have a computer to look up things but I'm glad I paid my dues star hopping for three years. Debbie