The size and weight of this scope are notable. The ED-PRS has huge turrets. It's like they looked at Arken's turrets and said, "hold my beer". That said, the turrets are quit audible and tactile positive with no slop. The elevation turret has a ring and cog tooth style zero stop.
But this scope is heavy. Nearly 4lbs and over 16" long; over 19" with the sun shade attached. The Gen 2 has a greater range of adjustment than the Gen 1 and now sports Japanese ED glass. In my resolution testing the ED-PRS is just as sharp as the performance I got from my Tract Toric or a Leupold Mk5.
One disappointing aspects of the ED-PRS is its unforgiving eye box (which it shares with other Discovery scopes I've tested). But given it's 399 price and the decent rings it comes with, this is a crazy value proposition for bargain basement precision shooters.