I'd get a MacDev Clone. I've owned 2 Geo2s, 2 NTs, DM7-10 and I kept the Clone over all of them. It's the second smoothest gun I've ever shot (first being DM7 with TechT bolt) and the smoothest I'ved owned. It pretty much has all the upsides that a DM has but it is also very efficient (they advertise 1700 + on a 68/45).
I really hope they do a better job with this marker. I owned 2 NTs and I wasn't really impressed with either of them. My BNIB Geo2 shot smoother and quieter than the "broken in" NT I had. Regardless if it is actually better, I'll probably end up buying one eventually because I'm a dope.