Virtually all of my shooting has been two handed except for the occasional mandatory one hand stages. I was taught that way both in the military and police and it worked better in competition also. A while back I did an assessment of my gunpoint situations that have happened over the years. This led me to realize that a very large percentage of them were done one handed, the other hand was busy opening doors, using the radio or pushing people aside. Since then I have phased in more one handed shooting into my practice time.