I was just about to buy the EGW mount because a lot of members said they were very happy with them,but I was a little confused about putting weaver rings on picatinny bases.I had a Picatinny mount laying around from another project and when I realized the slots on the pic rail were quite a bit bigger than my weaver mounts I decided to get a different base for that gun.When I talked to the guy at Weaver he basically told me the same thing.Obviously they work because a lot of people are using them,I just didn't like the idea of having that slop in there.Whatever works I guess.