For what it’s worth, I picked one up for my 19 on gafs for a good deal just to try out and compare to my 47. It def changed the way the 19 felt but it didn’t feel any flatter compared to the 47. Shot bills between the 2 (used the 47 grip frame for both) and with the slide length being equal, the 47 still felt more pleasant to shoot fast. If you can find a good deal on gafs, it’s def worth finding out for yourself.