If I were you I would go with more speed. You are getting cripples because with steel when you shoot it doesn't have enough energy left to cleanly kill the goose when your shot gets to the bird. I have always been told with steel get the load with max amount of speed.I'm with SwampCollie on this one go with the hevi-shot. Even though that it is more exspensive you use less shells than you do steel shellswhich evens out in the long run.