By the way, the 4" achro I had was only a Chinese one, a Celestron CH102, which I bought nearly twenty years ago when they first starting bringing them over. The lens was superb. You should not rule out one of these because you can just about get them for free! I didn't like it on Jupiter but it was just a fantastic lunar scope. The contrast was awesome. The SW100ED is a better scope, but doesn't have the "soul" the achro had. On the Moon, I honestly would take the achro, but I gave it away to a beginner last year.
Between 2000 and 2006, I observed the Moon most every night... or morning! That 4" achro was a Lunar go-getter. It was really atmospheric to be using a refractor, which is the kind of scope you see in old books. And the detail and contrast that scope gave on the Moon - I mean, I can still remember the views like they are etched into my memory.
Don't forget to observe in mornings too, if you can. Having the lighting from the other way makes things look different. And, in the Fall, we get the crescent up high in the morning, at least here in the Northern Hemisphere. I remember looking forward to sunset on Aristarchus and the Schroter Valley, in particular. You don't need to spend a lot of money to get good Lunar views. Get some books if you don't have them, and explore!
Edited by Glen A W, 16 August 2014 - 05:33 PM.