I have a question about trapping an opponent in half-guard on the bottom. Specifically which one of your (as the bottom guy) legs is bent under the other. For example suppose I am trapping the other guy's right leg. My natural inclination is for my right leg to bend and put my right foot in the crook of my left knee. However yesterday I had an instructor tell me that this is wrong; my outside leg should be bent with <i>its</i> foot under the crook of my inside leg. Further adding to my confusion is that I have spent the last hour looking up photos of the half-guard online and I have seen people doing it both ways. Is this maybe a situational thing or is there a correct way to pull half-guard with respect to the legs? Thanks.