These are just my personal observations...please feel free to comment and/or correct me....
REHOLSTERING: Seems like there may be some advantage to having a CCW holster designed so that you have to remove it from your belt/pocket/etc. in order to reholster your weapon. A holster like the N82 items may, in a way, be safer than the Summer Special types that stay attached and have the stiff-mouth openings that tempt you to reholster blind. If you have to take the holster off and reholster with both hands, you have visual and tactile confirmation that your "booger hook is off the bang-switch".
LEO ENCOUNTERS: Having your gun away from your body is the optimal situation. However, if my gun is still on my person when the police arrive, my response is going to be to place both hands on top of my head with fingers interlaced. If the LEO asks if I'm armed, I'll tell him where my weapon (gun, knife, etc.) is. If the LEO orders me to reveal or remove it, I'm responding "NO, SIR/MA'AM. I AM NOT TOUCHING MY WEAPON. I WILL REMAIN STILL AND ALLOW YOU TO SECURE MY WEAPON. I WILL NOT TOUCH MY WEAPON." And I'll stand still until the LEO has done what they need to do. That way, I'm not moving in any threatening way. Also, if the LEO shoots, the LEO will have a hard time explaining to my attorney and the DA why he/she shot a guy whose hand were on top of his head with fingers interlaced.
Just my $0.02.....please discuss.....