Well thanks Pete, Rob and Duncan for the input. I too leave mine set up all the time, I have been lucky enough to have clear skies every night since I got it, (think my misses is regretting her purchase, LOL). We live on 20acres on the outskirts of town so is a lot darker than being stuck in the suburbs as well. As for upgrading, I am gong to, but am having such a ball with this scope, and want to play for a good while so that I explore all the different avenues and know exactly what I want when I do. Thaks again for your input.