I picked up the stainless 1991 in .38 super today, has the standard plunger tube slightly off center issue, slide to frame fit is fine, but there is the slight gap between dust cover and the slide where you can see the mainspring a bit if you tilt the slide up, ie: the slide has a little bit of vertical play when grasped at the muzzle, a stainless springfield next to it was the exact same. I am thinking I might be too picky. The most offensive issue was all of the sharp edge and machine marks inside, like they were in a rush to get the gun to market. We had to file off a pretty nasty bur inside the slide. The trigger however is perfect. Nothing however was a deal breaker and I look forward to shooting it.