Thanks, I try locking the slide back for a few days. I have no issues with my sig p220 ejecting, but maybe my grip could be adjusted as this is a little bit bigger.The only time I've had issue with ejection is when I first learned shooting from retention and didn't have my wrist aligned correctly.
Also, check the sticky in the FNX section for tips on working in the RSA, namely locking the slide back for a few days. Those springs can be rather stiff out of the box. Hope this helps!