I played with it some more. I tried it triangling the legs, it takes away the range of motion needed to attack the shoulder. The posture is controlled with angle from being under him and using your deep hook for the same job your leg does in an omoplata, or like the ice-pick really. Im starting to like it, but I still wanna play with it more. Im always skeptical until its a staple move. Sure would be nice to have more than one sub from there...
Personally, I LOVE slicers. I use them all the time. Ive also seen them injure folks before: Busted knees, or broken shins or forearms, muscle damage, etc.. With that said, historically slicers have proven to be very unreliable in competition. This is a generalization, as i just stated a good slicer and injure someone. I bet sean applegate can slice your arm right in two. But generally speaking, shoulder locks fairly high reliability vs slicers which have some of the lowest reliability. For the avg guy, a shoulder lock is usually a much safer bet, especially in a competition.