The Quantum Zero-G Scorpius is a great overstable distance driver.  It is very similar to an Innova Destroyer (an older version similar to the old AJ Destroyers).  I've also thrown it in Sirius plastic and find it to be very consistent.  They have excellent glide to get down the dairway, but have the stability to give needed control (even in the wind).  I find the Scorpius to be much more consistent to where you know what you are gonna get every time, which I prefer over a Destroyer (which can be somewhat inconsistent).  This truly is a five star disc, but chose to give it 4.5 stars because it can sometimes be hard to find.  Stock up on the Scorpius when you find them and you won't be disappointed.

Just started bagging a 151g Zero G Scorpius. When thrown on a slight hyzer it goes straight for about 250-275 then turns over and rides the turn another 75-100 feet, making it one of my farthest flying discs in the bag. The late flip reminds me of a longer leopard. Almost every time someone says "wow what disc did you just throw",  it's been a 150g Scorpius or 1.1 Sof. For me the Sof goes just as far but with a straighter flight, where as the ZG scorp ends up more right- rhbh.

I have 2 reviews for this disc, one for FH throws and one for BH throws because it flies completely different for both.

When I throw this with a FH, I get a lot of turn, but not so much that it becomes a roller.  It just turns and turns before slowly coming out of it for a straight finish.  I don't get a big fade at all.  The disc will end up about 50-80 left of the line I release it on.  It comes out super smooth however and very clean.  It also goes very far with all that turn.  I get a maximum flight of about 400-450 with my FH tosses, and this can get right in that range without having to muscle it down the fairway.  

On a BH, this is a way more stable disc.  My BH is not as strong as my FH, but I can still get a 400 plus drive if I really get into it.  With the Scorpius, I can just get it up to flat, but not for long before it starts to fade out.  This is on a slight hyzer release.  So this isn't a bomber disc for me with a BH, but something I can throw in the 300-350 range with a sharp fade, maybe longer with a tailwind.  Again though, it comes out very clean and I really like the weight of the Quantum Zero-G.  

Overall I really like this as a long ranger that I don't have to put everything into.  It isn't my farthest flying disc, but it is a disc I will find myself going for a lot as a workhorse or something I know will do what I want.  

I agree with some of the other posts, these discs are like Destroyers on steriods. I find that they are a bit more reliable than destroyers and are not as much dependent on the angle that you release them. Overall, I was quite surprised with this disc. Very, very good disc for forehand as mine seems to be really torque resistant and wont turn over.