Hey guys, I am looking into getting a G21 to add to my my collection. I do not have a .45 so it is time to fill that gap. That being said, I have been able to get my hands around a G21 and it felt a little big for my hand though I would have no problem shooting it. How much of a difference is the G21SF compared to the standard G21 as for grip. Are they really close or is their a significant difference ? The reason why I ask is that in the gun shops around here you can find G21's with relative ease but I have not been able to find one G21SF to compare it with the G21.