Hi. I just purchased a used 3rd gen 5906 as well and replaced my worn and scuffed up grips with new factory S&W grips (ordered from Brownells). When I look at your pics closely focusing on your before & after versions it looks to me as though the safety may not rotate all the way down with the new grips in place. Just curious, but what am I missing? It looks like there may be a subtle difference in your old vs new grips. Has the plastic been thinned out at the top of your replacement grips so the safety has room to rotate? The grips I received were identical to the ones I removed (they match your old ones). Maybe my replacement grips weren't the most recent model??? I like the look of your replacement grips better.