Why are people so hung up on this? What would it matter if the slide were a little thinner? You still have a thinner slide riding on the same fat frame. I just dont understand why this would ever be a benefit.
FYI I ccw the 21sf daily and have no issues with it. I love Gen3 and have 2 to hold me over. I can care less if they made a thinner slide for it. A single stack would be awesome and the entire gun being thinner would be an advantage but I fail to see how a slightly thinner slide would do anything for function/comfort.