This is one of my favorite disc I have no problems getting it to flip or throw it flat for nice turn and consistent finish 

I really like this disc! It's not for headwinds, but otherwise it's easy to get the S-curve flight and great distance out of it. I've introduced a number of people to disc golf and find that they do better from the get-go with understable discs; and despite the 10 speed of the Berserker, it has actually proven to be really good for beginners who aren't afraid to put a little more umpf into their throws -- consistenly netting them some of their farthest throws and most direct (end result) flight paths! I almost bought some more of them recently to give them as gifts to newer players since they had worked so well for them. I have almost a complete set of Viking discs, and all but one are in Storm plastic (similar to other brands' C-blend, champion, Phoenix, etc). It's a great plastic blend I'd recommend for its durability and the general feel and clean release; also the bright colors they typically come in which makes finding the discs easier when they end up off the fairways (or even in fairways/greens where the grass is getting longer, leaves are getting thicker, or the daylight is fading).

What a great disc! 

In the Storm plastic this disc holds up well and is more gummy than discs in a lot of other clear plastics. It feels most similar to Latitude64 Opto, which I love.  

The Berserker is very domey, so if you don't like that it might not be for you.  I tend to prefer some dome with understable discs so it is perfect for me.

I think the flight numbers are accurate for this one.  Do not buy this if you're not prepared for a very flippy disc! For me, it's perfect for turnovers if I put it flat or for rollers on anhyzer, but hyzer release is where this one is golden.  It can take a pretty significant amount of hyzer depending on your power, but this disc can achieve long, full, s-curve flights without that much effort.  This was the first disc that I was able to break 300' with! It's definitely in the bag. 

The Ground Plastic is insanely flippy.

I throw the Storm Berserker 168g whenever I need to throw up hill or in a strong tailwind

Armor Plastic 171g is nice for flex shots, Armor seems a little more Stable than Storm for me.

For reference, I can throw 300 with a decent flex. in a tailwind.

Hyzer flip for days! What a great disc for tunnel shots and low shots that need glide. The plastic is fantastic! Very grippy yet durable. This is my second Viking disc and I like it! The biggest difference between this flippy driver and others is that it can handle a little wind. It still has a little finish when the breeze is up. Because of this, I find myself reaching for this disc more often. Sure you can urn it right over if you rip on it but, if you play nice, it will reward you with easy distance. 

I have the Berserker in Storm plastic, and can say this has become my main backhand disc off the tee box. It flies much more stable than -3, and feels like a more forgiving Champion Beast or Orc. Can be flippy, but usually very reliable and predictable. Plastic seems to be indestructible, I hope Viking Discs is still around or making a comeback.

I got the Berserker in Armor plastic and let me tell you, this thing has become my favorite disc to throw!  If you play a lot of heavily wooded courses this is the perfect disc to bag, it is very user friendly and able to shape for tight lines.  I successfully parked a narrow gap 375 ft. In the woods all 3 times I used the Berserker and I wasnt able to before.  If released on a slight hyper it flips up and rides to the right before settling down left, great for s-curves.  It however might be a bit on the flippy side for bigger arms.  All in all it's a blast to throw