Yes, thank you for your concerns, especially the last one.
I've had Nemesis before and some times, depending on the gun, design of one's pocket, etc., it all comes out.
So, I'm training myself to cover the outside of my pocket with my offhand while simultaneously pulling the weapon out by the handle and then bringing both hands together to assume the isosceles stance. There is a concern, though, that one might start shooting prematurely and knock off one's finger or worse.
It might be safer and quicker to initially present one-handed in that instance, but I'm no expert, and not in a higher-risk occupation, e.g., cabdriver, jewelry store owner, cops, divorce attorneys, etc., so I'm not going to worry about it that much.