I" set to purchase a g21 this week, but I have beed reading a lot of the post and wondering if I"m making the right choice. My thoughts were to go with the g21sf, for carry and general shooting. I like the longer barrel even though it's not that much longer than the 30. I thought the recoil would be less, but perhap the 30 would carry better. I" not that concerned with size or weight, I carry a 1911 now. Any thought would be great, thanks for you help and input.