Preface to all my Kastaplast Reviews: I am a sucker for K1 plastic, yes, I am biased here.

I bought the Impa hoping for a massively understable bomber. And what I got was a massively understable bomber with a few other tricks up its sleeve as well. In terms of distance: this thing is effortless to hyzer flip. As I improved my form and started to throw farther and farther, I found that this actually can take a good amount of hyzer and STILL get to flat. Think of those videos you see of people throwing the Founder on a near-vertical spike angle, and the disc still gets a little turn before it fades out. Now add a ton of speed to that disc, and you have the Impa.

The biggest trick I referred to was the fact that this thing doesn't turn and burn or go full roller or "Throw-ller" when released flat. If you're uncomfortable with forehands, but need to be able to round corners to the right, buy an Impa, and release it flat, maybe a little hyzer, and watch it go 80% your max distance on a perfect forehand line, even thrown backhand.

The disc isn't the most amazing roller, I would still maybe opt for a Mamba if I regularly threw rollers, but it can be used in a pinch if you don't have any other roller discs in the bag. 

The half point it's missing is that it can be very difficult to judge exactly HOW much hyzer you need for a given situation, given that this thing wants to flip up so badly. Still though, especially for newer players seeking to add distance, an Impa is a great 11 speed that's friendly to slower arms.

With a lot of other discs with this amount of understability, you often get a disc that feels quite domey and not great for a forehand. Although I would say the Impa is more suited for a backhand power-grip, it is one of the best feeling flippy distance drivers I have tested for a forehand. Even with -4 turn, it does have a decent amount of integrity, and will fade at the very end of the flight. You won't have quite as many throws burning over on you as you might expect. The Impa slots really well after the Alva in terms of stability in the Kastaplast line up. As always, K1 plastic feels amazing and won't be too gummy in the summer, and not so slick in the winter. 

The Impa would also be a fantastic choice for intermediate players looking to get a bit more distance on their drives. It is absolutely worth giving a try.