Phaedrus... I had a similar problem trying to decide which slide to have machined... I picked up a Gen 5 G45 on Glock's Blue Label program they opened up to DD214 holders (still good till Veteran's Day)... I had a new set of Dawson fixed sights added to the G45 so went with the older Gen 3 G17... I have started shooting another G17 with a Vortex Venom for Steel Challenge, and get a lot of .22lr practice time in with the Venom sighted Advantage Arms conversion unit for the G17