My 357 is the 715-VH in stainless. I bought it last year from the original owner and have the foam box with all tools, warranty card, etc. Sight did not wobble when I purchased it but after 100 rounds, and cleaning I noticed that it had started.
The blackhawk sight dropped right in, pin slipped in place. Fit is good, overall contour of the sight is not a perfect match but
never had a problem with a minor blemish keeping me from hitting the target.
I managed to create a delay in getting the new sight...my fault, but should have that worked out next week.