Went 50x4.5x30 on my Polaris Hybrid as I wanted the same layout as my Solid which may be the best solid asymmetrical ball I have ever thrown (sorry original black Conspiracy).
Out of the box I really wasn't impressed with the Polaris Hybrid. It gave me more length and response than my Solid which was fine, but it just didn't do it the right way - the ball would slide a little too far when I got it in the oil or stand up too quick off the friction. I rarely like hybrids so it was off to the spinner with this ball to add a little more surface.
My best use of this ball is when my strongest balls begin rolling too early and look flat (Polaris solid, Envy Tour, Mindset), but I still want to stay in the same part of the lane with a ball that will give me a little more length/flip on the back end. I have had quite a bit of success camping with my feet but increasing my speed and just letting the ball do the work which is usually not what I am most comfortable doing. With that being said, I often find with balls that want to make a big move on the back end, trying to soften up and shape the ball too much leads to angles that are a bit too sharp or risky for my liking.
In terms of where this ball fits in my bag it typically covers a similar number of boards to my Envy Tour and Verge Solid, just with more of that hook happening towards the end of the lane. In terms of comparison to other balls in my bag, the Polaris Hybrid is closest to my Quantum Evo Pearl (the evo hybrid is earlier) or maybe my 3D Hammer with a little more finish on the back end. The Polaris Hybrid definitely holds a unique spot in my bag being able to really cover some boards on the back end, the only thing is that as a bowler I rarely need help trying to see more motion - I am usually trying to control what is out there!
I have used the Polaris Hybrid on a variety of patterns and have to admit that it clearly looks best on our med-heavy oiled league shot. This ball hits the corner a little too hard for use on most of the Challenge type patterns I have been on where controlling my angles is at a premium, but on the house shot where I have some miss room and want to see a strong ball drive through the pins, the Polaris Hybrid has been great. I will usually start with something with a rougher surface like my Verge Solid or Polaris Solid and get into this ball in game 3 of our 4 game league.
I recommend the Polaris Hybrid for speed dominant players who are looking for a ball to switch to when their favourite heavy oil hook monster begins rolling too early and looking a little flat. The combination of a big core and a responsive cover make it a great option to still provide that strong roll, but with a little extra length and back end shape as the lanes begin to burn out. This ball is a keeper in my league bag, but will only make sporadic appearances in my tournament bag due to it being just a little too much for me on the back end.